Fitter TT – 2nd Year (set -1)By pulak.univ / February 1, 2024 Welcome to CBT Exam Preparation Try to repeatedly answer the questions till you get the CORRECT answers LET'S CONTINUE Name Phone 1. What is the file for lock repair and filing hard notches in keys? Pillar file Flexible file Warding file Swiss pattern file None 2. What is the advantage of lock washer? Provide increased bearing surface Prevent the damage to the surface Distribute even pressure on working surface Prevent bolt or nut from loosening under vibration None 3. What is the name of fixture? Plate fixture Angel plate fixture Indexing plate fixture Modified angle plate fixture | None 4. Which type of bush is used in jig to perform more than one operation in same location? Slip bush Plain bush Fixed bush | Liner bush None 5. What is the purpose of grooves provided in the ‘V’ blocks? What is the purpose of grooves provided in the ‘V’ blocks? Reduce the weight Support the work piece Accommodate the clamp None 6. Why the balancing weight is provided in the turning fixture? To guide tool To balance the tool To balance worktable To balance irregular workpiece None 7. Which type of fixture is used for machining on evenly spaced surfaces? Plate fixture Vice jaw fixture Indexing fixture Angle plate fixture None 8. What is the name of jig? Add description here! Post jig Solid jig Channel jig | Trunnion jig None 9. Which is the important factor to determinethe construction of fixture? Machining method Location and clamping Tool guiding and frame Size of work piece and tool None 10. What is the purpose of setting blocks used in the fixture? Add description here! Position the balancing weight Position the clamp and locators Position the fixture on machine table Position the fixture and work related to cutter None 11. Which type of jig is used for awkwardly shaped work piece to drill at different angles? Post jig Solid jig Indexing jig | Trunnion jig None 12. Which device holds, supports, locates and also guide the cutting tool for operation? Jig Fixture Chuck Machine vice None 13. What is the name of clamp used in jig? Add description here! Tooth clamp Latch clamp Toggle clamp Wedge clamp None 14. None 15. Why two or four hold down slots are provided in the base plate of milling fixture? For rigid clamping For guiding the tool For locating workpiece For adjusting the job setting None 16. What is the advantages of mass production? Initial expenditure is low Jigs and fixture are not needed | Cost and time reduced for manufacturing Special purpose machines are not necessary None 17. What is the name of jig? Add description here! Box jig Drill jig Post jig Leaf jig None 18. What is the method of lubrication? Add description here! Force feed Gravity feed | Splash feed | Line feed None 19. Which bush is used to provide a hardened hole for renewable bushes? Slip bush Plain bush Fixed bush Liner bush | None 20. What is the name of clamp? Add description here! Cam clamp Screw clamp Wedge clamp Toggle clamp None 21. Which device is used to hold, locate and not guide the cutting tool during machining operation? Jig Fixture C clamp Machine vice None 22. Which type of fixture provides an easy method of holding parts for machining? Turning fixture Vice fixture Milling fixture | D Grinding fixture None 23. Which part restrict incorrect loading of component in jig? | Which part restrict incorrect loading of component in jig? Clamp Guide plate Locating pin Press fit bush | None 24. What is the type of jig? Add description here! Post jig Plate jig Indexing jig | Angle plate jig None 25. Why tenons are provided at the bottom of base plate of milling fixture? For guiding the too For clamping purpose For balancing workpiece For proper location of fixture None 26. What is the purpose of drill bushes provided in the drill jig? To support base plate To support drill plate To locate and guide cutting too To restrict the movement of job None 27. What is the name of fixture? Add description here! Vice fixture Solid fixture Plate fixture | Indexing fixture None 28. What is the colour of the aluminium metal? Yellow Redish Whitish grey Silvery white None 29. Which ore produces lead metal? Pyrites Bauxite Malchite Galena None 30. What is the name of metal alloy of lead, tin, copper and antimony? Bronze Gilding metal Babbitt metal Leaded bronze None 31. What is the ratio of copper and zinc in “Muntz metal”? 63:37 60:40 57:43 70:30 None 32. Which metal is extracted from bauxite ore? Zinc Brass Copper Aluminium None 33. Which metal is used in the preparation of paint? Zinc Lead Brass Aluminium None 34. Which type of belt drive, the driven shaft will rotate in opposite direction to driver shaft? Stepped drive Open belt drive Cross belt drive Right angled belt drive | None 35. What is the name of belt fastener? Add description here! Wire type Lagrelle type | Alligator type | Crescent plate type None 36. What is the type of gear? Add description here! Spur gear Mitre gear Hypoid gear Hearing bone gear None 37. Which type of gear drive changes rotary movement to linear movement? Hypoid Herring bone Rack and pinion Helical gear None 38. Why the small steel wedge is tapped under the machine in lifting operation? To prevent vibration To reduce the weight To accept the crowbar To balance the machine None 39. How to adjust the tension of belt between two fixed pulleys? By sliding the pulley | By fixing idler pulley By adjusting the length of belt By adjusting the screw of pulley None 40. Why vertical belt drive is avoided in power transmission? Because of small wrapping of belt Because of excessive contact Because of gravitational pull and slippage Because of increase in surface speed of pulleys None 41. What is the name of the coupling? Add description here! Slip coupling Plate coupling Clamp coupling Universal coupling None 42. Why the face of pulley is “Crowned” in power transmission? Increase the tension | Decrease the tension Keep the belt centralised Allow the pulley free rotation None 43. Which graphical representation of the activities performed during manufacturing? Job card Process chart Batch record form | Batch processing form None 44. Which coupling is used in the place for slight relative movement is required? Chain coupling Flange coupling Flexible coupling Muff coupling None 45. Which is the imaginary circle on two matting gears? Root circle Pitch circle Base circle Addendum circle None 46. What is the name of radial distance between the pitch circle and root circle in gears? Land Addendum Dedendum Working depth None 47. How to improve the gripping property of the dried belt? Jockey pulley Apply powdered resin | Reduce the distance between pulleys Increase the distance between pulleys None 48. Which type of belt fastener used on heavy duty machine? Wire belt fastener Jackson belt fastener Lagrelle type belt fastener Crescent plate belt fastener None 49. What is the name of the part marked as ‘x’ of gear? Add description here! Flank Addendum Face width Root circle None 50. What is the name of the gear? Add description here! Mitre gear Bevel gear | Hypoid gear Worm shaft and worm gear None 51. What is the name of copper ore? Galena Blende Bauxite | Malachite None 52. Which are the alloys of brass metal? Copper and tin Copper and zinc Copper and lead | Copper and nickel None 53. Why aluminium is used widely in aircraft industries? Light weight Hard and Brittle High tensile strength Low thermal conductivity None 54. What is the name of the metal extract from ore galena? Tin Lead Copper Aluminium None 55. Which metal alloys is used to make friction bearing? Tin | Nickel Chromium Babbitt metal None 56. What is the melting point of nickel? 1300°C 1450°C 1100°C 1950°C None 57. What metal is used to make agricultural equipment like ploughs and blades? Nickel steel Silicon steel Chromium steel Manganese stee None 58. Which metal powder is used in calorising process to prevent corrosion of steel component? Zinc powder Nickel powder Aluminium powder | Chromium powder None 59. Which type of brass sheet is used for deep drawing? Basic brass Navel brass Cartridge brass Standard brass None 60. Which type of bronze metal has excellent antifriction properties? Low tin bronze Leaded bronze Phosphor bronze | Leaded gun metal None 61. What is the name of the coupling? Add description here! Slip coupling Plate coupling Clamp coupling Universal coupling None 62. Which ore is extraction of aluminium? Pyrites Galena Blends Bauxite None 63. What is the composition of leaded gunmetal of copper, zinc and tin? Copper 90%, lead 5%, tin 5% Copper 94%, lead 4%, tin 2% Copper 88%, zinc 2%, tin 10% Copper 85%, lead 5%, zinc 5%, tin 5% None 64. What is the name of alloy consist copper and zinc? Aluminium Gunmetal Brass Bronze None 65. None 66. What is the part marked as ‘x’ ? Add description here! Fast pulley Crown pulley Loose pulley Flat drive pulley None 67. Which metal used to make alligator type fastener? G.I sheet Copper sheet Steel sheet Aluminium sheet None 68. None 69. What is the purpose of jockey pulley in belt drive? To maintain the tension To decrease the tension Keep the belt centralised | Allow free rotation of pulley None 70. Which power drive will transmit motion at constant velocity without creep and slippage? Rope drive Gear drive Pulley drive Chain drive | None 71. Which coupling provides rigid connection between two shafts? Fast coupling Clamp coupling Safety coupling Universal coupling None 72. None 73. Name the type of belt fastener? Wire type belt fastener Alligator type belt fastener Jackson type belt fastener Crescent plate belt fastener None 74. What is the name of pulley? Add description here! Step pulley Flat pulley V groove pulley Fast and loose pulley None 75. Which gear run more silently? Spur gear Mitre gear Bevel gear Helical gear None 76. Which documentation record is used to know batch number, date of allocation, product identify and size of batch? Processing chart Job card Operation flowchart Batch processing record | None 77. None 78. What is the name the of gear mechanism? Add description here! Mitre gear Bevel gear Rack and pinion Worm and worm gear None 79. What is the percentage composition of lead in lead bronze bearing material? 15% 20% 24% 30% None 80. 4 What is the percentage of copper in malachite ore? 20% 30% 55% 80% None 81. Which metal is basically an alloy of copper and tin? Lead Brass Muntz Bronze None 82. None 83. Which metal is extracted from cassterite? Tin Lead Copper Aluminium None 84. Which coupling will have disengaging provision? Clamp coupling Slip type coupling | Universal coupling Plate coupling None 85. None 86. What is the marked as ‘X’ in gear? Add description here! Flank Top land Fillet Face None 87. How the shifting of belt is enabled from fast to loose pulley? By crowned face of pulley By sliding the loose pulley By adjusting the tension of belt By belt dressing None 88. What is the name of belt fastener? Add description here! Wire type belt fastner Lagrelle type belt fastner Cresent plate belt fastner | Jackson type belt fastner None 89. What happen, if the wrapping angle is greater than 180°? Add description here! Pulley can drive low load Pulley can drive low speed Pulley can transmit low torque Pulley can transmit high torque None 90. Where helical gears are used? Lathe machine Drilling machine Grinding machine Automobile vehicles | None 91. Where universal coupling used? Textiles mills Large angle drive Automobile vehicles Engineering machines None 92. What is the element of gear marked as ‘X’? Pitch line Face width Addendum circle Dedendum circle | None 93. Which type of drive is used for shortest distance and for large amount of power transmission? Belt drives Gear drives Rope drives Chain drives None 94. Which belt slip less in power transmission? “V” belt Flat belt Link belt Ribbed belt None 95. Which type of belt length cannot be altered and reused with fastner? ‘V’ belt | Flat belt Link belt Ribbed belt None 96. Which type of belt drive is used to obtain different speed ratio? Slip belt drive Stepped drive Open belt drive Cross belt drive None 97. What is the name of gear? Add description here! Spur gear Mitre gear Bevel gear Hypoid gear None 98. Which energy is converted in hydraulic pump? Thermal energy to hydraulic energy Electrical energy to hydraulic energy Pneumatic energy to hydraulic energy Mechanical energy to hydraulic energy None 99. Which type of valve connections are opened or closed by means of spool slide? Check valve Butterfly valve Solenoid valve Non-return valve None 100. What is the name of part marked as ‘x’ in compressor? Add description here! Relief valve Thermometer Shut-off valve Pressure gauge | None 101. How hydraulic transmission force is controlled? By air By gears By fluids By electric None 102. Which valve is used to permit fluid flow in one direction and block flow in opposite direction? Check valve Shuttle valve Orifice check valve | Pressure relief valve None 103. What is the name of the part marked as ‘x’ in non-return valve? Disc Stop plug Hinge pin Disc hinge nut None 104. Which valve has two inlet / one outlet in hydraulic / pneumatic system? Slide valve Check valve Shuttle valve | Solenoid valve None 105. What is the name of the symbol? Moving part of valve Pressure relief valve | Double acting cylinder Single acting cylinder with spring None 106. Why in hydraulic pump the filter is installed in suction line? Reduce the oil to enter Preventing foreign matter Reduce pressure in the pump Increase the pressure in the pump None 107. Which valve is used for fine control of flow in pipe line? Gate valve Globe valve Needle valve Non - return valve None 108. Which valve is used to permit fluid to flow in one direction and block the flow in oppsite direction? Globe valve Check valve Shuttle valve Pressure relief valve None 109. Which valve protect against excessive pressure in hydraulic system? Gate valve | Globe valve Relief valve Non-return valve None 110. Which gauge indicates pressure valve above the atmospheric pressure? Pressure gauge Temperature gauge Receiver gauge Precision gauge None 111. Which pressure value is read through pressure gauge? Gauge Pressure Atmospheric Pressure Vacuum Pressure Absolute Pressure None 112. Which formula is used to calculate the pressure? Force + Area Force/Area Force - Area Force x Area None 113. Which formula is used to calculate the absolute pressure? Atmospheric Pressure - Gauge Pressure Atmospheric Pressure + Gauge Pressure Atmospheric Pressure x Gauge Pressure Atmospheric Pressure ÷ Gauge Pressure None 114. What is the unit of pressure in SI unit? Kilogram Pascal Pound Meter None 115. Which term is a metric unit of pressure equal to 1,00,000 pascal? Millibar Kilo Pascal Bar Newton None 116. What is the value of bar in metric unit of pressure? 1 kg/ mm2 1 kg/ cm2 1 kg/ m2 1 kg/ dm2 None 117. Which formula is used to calculate force? Pressure ÷ Area Pressure x Area Pressure - Area Pressure + Area None 118. What is the unit of force in SI unit? | Kilogram Newton Dyne Pounds None 119. What is the name of valve? Add description here! Flow control valve Ball type check valve Swing check valve | Pressure type valve None 120. What is the name of the valve symbol? Add description here! Directional control valve Flow control valve 3/2 way valve 5/2 way valve None 121. 2 What is the name of pneumatic valve symbol? Add description here! Directional control valve Roller valve Pressure valve Flow control valve None 122. What is the name of pneumatic symbol? Filter Lubricator Dryer Pressure gauge None 123. What is the name of valve? Add description here! 5 port 2 position valve 3 port 2 position valve 4 port 3 position valve 4 port 2 position valve None 124. What is the volumetric efficiency of piston type motor? Add description here! 0.8 0.75 0.98 0.95 None 125. Which parameter is specified to design hydromotor? Maximum operating pressure Maximum oil saving method Maximum piston size Maximum cylinder size None 126. What is the name of motor? Add description here! Gear type of motor Vane type motor Axial piston motor Radial piston motor None 127. What is type of hydromotor? Add description here! Gear type Vane type Piston type Propeller type None 128. None 129. How many types are there in Hydromotors? 4 type 3 type 5 type 2 type None 130. What is the name of symbol used in hydraulic cylinder? Add description here! Single acting load returns the piston ingle acting return piston Double acting power stoke Double acting with crushing None 131. How direction control valves are classified? Number of ports and position Direction of flow | Maximum pressure of valve Direction of pressure | None 132. What is the type of direction control valve? Add description here! 2/2 way valve 3/2 way valve 4/2 way valve 4/3 way valve None 133. What is the name of circuit diagram? Add description here! 2/2 way valve 3/2 way valve 4/2 way valve 4/3 way valve None 134. What is the name of the part marked as X in Hydraulic power System? Add description here! Two piston valve Double acting cylinder Pump | Reservoir None 135. Which gauge indicates the amount of fluid pressure in the hydraulic system? Vacuum gauge Pressure gauge Fluid gauge Pneumatic gauge None 136. What is the name of adjustable restrictor? Needle restrictor Longitudinal restrictor Gap restrictor Circumferential restrictor None 137. What is the operating voltage of electro pneumatics? 10V- 140V 12V - 220V 15V - 200V 200V - 240V None 138. What is the type of solenoid valve? Add description here! 5/2 way double solenoid valve 5/2 way single solenoid valve 3/2 way single solenoid valve Double solenoid valve | None 139. What is the type of filter? Add description here! Absorbent filter Mechanical filter Magnetic filter Return line filter None 140. Which system gets compressed air as energy inputs? Hydraulic System | Pneumatic System | Electrical System Mechanical System None 141. What is the science that you study the properties and application of air? Hydraulic System | Pneumatic System Electrical System | Mechanical System None 142. Which pressure value is measured with respect to perfect vacuum? Atmospheric Pressure Absolute Pressure Gauge Pressure Vacuum Pressure None 143. Which system is used to move load with less efforts? Pneumatics Hydraulics Pressure Flow of Air None 144. Which actuation is under the applications of pneumatics? Drag Push | Close Open None 145. Which system uses liquid as transmitting fluid? Pneumatic system Hydraulic Electrical Mechanical None 146. What is the working system? Add description here! Work done in mechanical and Pneumatic system | Work done in mechanical and Hydraulic system Work done in mechanical and Electrical system Work done in mechanical and Electronic system None 147. What is the name of the Hydraulic Circuit? Add description here! 5/2 way circuit 4/2 way circuit 3/2 way circuit By - Pass circuit None 148. Which valve is used to control the direction of the flow of fluid? Flow control valve Non - return valve Pressure control valve Directional control valve None 149. 4 Which part of the single acting cylinder is attached with the load? Spring Seal Piston Piston Rod None 150. Which device in pneumatics is used for converting pressure energy of compressed air in to mechanical energy? Pneumatic actuators Filter Regulator Cylinder None 151. What is the purpose of direction control valve in hydraulic system? Open or close Increase the pressure Decrease the pressure Control the valve | None 152. Where ram is used in hydraulic linear actuator? | Elevator Jack Oil Pumps Rotating motor | Hydro motor None 153. Which energy is converted by hydro static pressure of the oil? Electrical energy Mechanical energy Penumatic energy Hydraulic energy None 154. Which valve block flow in one direction and allow free flow in the other direction? Non- return valve 4/2 way Valve Gate valve Globle valve None 155. Where hydraulic by-pass circuit is used in common? Milling machine Turning machine Grinding machine Shearing machine None 156. What is hydraulic function? Add description here! Hydrostatic Pressure Transmission of fluid pressure Inequal piston areas Turbulent flow None 157. Which energy is present in oil by virtue of its motion? Potential energy | Kinetic energy Static energy Heat energy None 158. Which property of oil that controls the flow in hydraulic system? Viscosity Oilness Pour point | Flash point None 159. What is the name of the device used to remove dust, chips and other foreign particles from the fluid? Pressure regulating valve Filter Accumulator Regulator None 160. Which valve is used as interface between the electrical and pneumatic system? Roller valve Flow control valve Solenoid valve Pressure relief valve None 161. Which valve is used for mechanical position to sense in machine automation system? Pressure relief valve | Roller valve Flow control valve Directional valve None 162. Which valve is used to remove the excess amount of oil in the hydraulic system? Pressure relief valve Pressure reducing valve Pressure regulator valve Roller valve | None 163. Which valve is an orifice or restrictor in hydraulic system? Flow control valve Check valve Direction control valve | Pressure Valve | None 164. Which device enables different flow rate of oil? Throttle valve Pressure valve Orifice Restriction flow None 165. What is the periodic oil drain from the compressor? Once in a week Once in a month Once in every 3 months Once in every 6 months None 166. Which type of filter is used for trapping various sizes of particular matter? Mechanical filter Absorbent filter Magnetic filter Suction filter None 167. Which type of filter is used to remove ferrous materials from oil in hydraulic system? Pressure line filter | Offline filter Magnetic filter Absorbent filter None 168. Which property in hydraulic oil function is medium for heat transfer? Shear stability Low volatility Low foaming tendency Good thermal capacity and conductivity None 169. None 170. Which device is used for handling and removing contamination from hydraulic oil? Hydraulic filter Actuators | Valve Regulator None 171. Which part of double acting cylinder prevents air leakage from cylinder to atmosphere? Piston seal Rod Seal | Piston end | Rod end None 172. What is the defect caused by inter locked air bubbles and pockets in the hydraulic pipe lines and components? Cavitation Static pressure Vapour Pressure Pressure jerks None 173. What is the cause for oil flow under pressure while passing through the restricted passage? Increase Heat Decrease Heat Decrease volume Increase pressure None 174. Which valve prevents the system pressure from rising too high if the pressure regulating valve fails? | Check valve Relief valve | Pressure valve Direction control valve None 175. Which causes more than 90% of hydraulic system failure? Contamination of hydraulic fluid Leak of valve Pump Electric power None 176. Which type of filter helps to protect the pump from fluid contaminations? Suction filter | Magnetic filter Absorbent filter | Mechanical filter None 177. What is the working system? Work done in mechanical and Pneumatic system Work done in mechanical and Hydraulic system Work done in mechanical and Electrical system Work done in mechanical and Electronic system None 178. What is the name of the Hydraulic Circuit? Add description here! 5/2 way circuit 4/2 way circuit 3/2 way circuit By - Pass circuit None 179. Which valve is used to control the direction of the flow of fluid? Flow control valve Non - return valve Pressure control valve Directional control valve None 180. Which part of the single acting cylinder is attached with the load? Spring Seal Piston Piston Rod None 181. Which device in pneumatics is used for converting pressure energy of compressed air in to mechanical energy? Pneumatic actuators Filter Regulator Cylinder None 182. What is the purpose of direction control valve in hydraulic system? Open or close | Increase the pressure Decrease the pressure Control the valve None 183. Where ram is used in hydraulic linear actuator? Elevator Jack Oil Pumps Rotating motor Hydro motor | None 184. Which energy is converted by hydro static pressure of the oil? Electrical energy Mechanical energy Penumatic energy Hydraulic energy None 185. Which valve block flow in one direction and allow free flow in the other direction? Non- return valve 4/2 way Valve Gate valve Globle valve None 186. Where hydraulic by-pass circuit is used in common? Milling machine Turning machine Grinding machine Shearing machine None 187. Which energy is present in oil by virtue of its motion? Potential energy Kinetic energy Static energy Heat energy None 188. Which property of oil that controls the flow in hydraulic system? Viscosity Oilness Pour point Flash point None 189. What is the name of the device used to remove dust, chips and other foreign particles from the fluid? Pressure regulating valve Filter Accumulator | Regulator None 190. Which valve is used as interface between the electrical and pneumatic system? Roller valve Flow control valve Solenoid valve Pressure relief valve None 191. None 192. Which valve is used for mechanical position to sense in machine automation system? Pressure relief valve Roller valve Flow control valve Directional valve None 193. Which valve is used to remove the excess amount of oil in the hydraulic system? Pressure relief valve | Pressure reducing valve Pressure regulator valve Roller valve None 194. Which valve is an orifice or restrictor in hydraulic system? Flow control valve Check valve Direction control valve Pressure Valve None 195. Which device enables different flow rate of oil? Throttle valve Pressure valve Orifice Restriction flow None 196. What is the periodic oil drain from the compressor? Once in a week Once in a month Once in every 3 months Once in every 6 months None 197. Which type of filter is used for trapping various sizes of particular matter? Mechanical filter Absorbent filter Magnetic filter | Suction filter None 198. Which type of filter is used to remove ferrous materials from oil in hydraulic system? Pressure line filter Offline filter Magnetic filter Absorbent filter None 199. Which property in hydraulic oil function is medium for heat transfer? Shear stability Low volatility Low foaming tendency Good thermal capacity and conductivity None 200. Which device is used for handling and removing contamination from hydraulic oil? Hydraulic filter Actuators Valve Regulator None 201. Which part of double acting cylinder prevents air leakage from cylinder to atmosphere? Piston seal Rod Seal Piston end Rod end None 202. What is the defect caused by inter locked air bubbles and pockets in the hydraulic pipe lines and components? Cavitation Static pressure Vapour Pressure | Pressure jerks None 203. What is the cause for oil flow under pressure while passing through the restricted passage? Increase Heat Decrease Heat Decrease volume Increase pressure None 204. Which valve prevents the system pressure from rising too high if the pressure regulating valve fails? Check valve Relief valve Pressure valve Direction control valve None 205. Which causes more than 90% of hydraulic system failure? Contamination of hydraulic fluid Leak of valve Pump Electric power None 206. Which type of filter helps to protect the pump from fluid contaminations? Suction filter Magnetic filter Absorbent filter Mechanical filter None 207. What is the system of lubrication? Add description here! Wick feed | Ring oiling Splash system Manual screw down system None 208. What is the property of lubricant that can withstand high pressure or load? Oiliness Viscosity Fire point Flashpoint None 209. What is the flash point of general purpose machinery oil? 160°C 196°C 210°C 204°C None 210. What is the name of the clutch? Add description here! Air clutch Dog clutch Cone clutch Single plate clutch None 211. What is the name of lubrication system? Add description here! Wick feed Ring oiling Gravity feed Splash lubricating None 212. What is the name of clutch? Air clutch Multiplate Cone clutch Over riding clutch | None 213. What is the main advantage of toothed chain drive? Increase the tension chain drive Provide noiseless and uniform drive Efficient between shafts in short distance Provide high speed low torque transmission None 214. What is the ratio of soluble oil added to water to get non corrosive effect? 0.0451388888888889 0.0486111111111111 0.0520833333333333 0.0555555555555556 None 215. What is the system of lubrication? Add description here! Wick feed Splash feed | Ring oiling feed | Hand pressure feed None 216. What is the purpose of using lubricant? Prevent wear Increases friction Increases the loading capacity Increases the speed of moving elements None 217. How the low speed gear is lubricated? Oil pump Splash type Gravity feed | Oilcan type or brush None 218. What is the property of the lubricant that the vapour is given off from the oil? | What is the property of the lubricant that the vapour is given off from the oil? Viscosity Fire point Pour point Flash point None 219. What is the frequency of maintenance symbol? Add description here! Daily Weekly Monthly Frequently None 220. What is the name of tooth type lock washer? Internal type External type Counter sink type Internal and external type None 221. Which system the wick feed lubrication is catagorized? Hand feed Force feed Splash feed Gravity feed | None 222. What is the frequency of maintenance symbol? Daily Weekly Monthly Once in six month | None 223. Which property states that the temperature of the lubricant is able to flow freely while poured? Add description here! Oiliness Fire point Pour point Flash point None 224. What is the name of clutch? Add description here! Air clutch Cone clutch Centrifugal clutch Over riding clutch None 225. What is the use of lubricant? Increases friction | Improved machine efficiency Increases the loading capacity Increases the speed moving elements None 226. What is the name of symbol marked as X? Daily Weekly Monthly Scheduled for frequency other than above None 227. None 228. Which cutting fluid is used for heavy duty machine with less cutting speed? Synthetic fluid | Straight mineral oil Fatty oil Soluble oil | None 229. Which type of lock washer used with flat or oval type head screw? External type Internal type Counter sunk type Internal and external type None 230. None 231. None 232. Which is the property of the oil catches fire and continues to be in flame? | Flash point Fire point | Pour point Oiliness | None 233. Which cutting fluid is used for turning copper? Kerosene | Mineral oil Soluble oil Lard oil None 234. Which type of clutch is used for machine tools to connect transmission gear box in driving motor? Cone clutch Multiplate clutch Air clutch | Centrifugal clutch None 235. Which cutting oil is used in automatic lathes? Soluble oil Fatty oil | Compounded (or) blended oil | Straight mineral oil None 236. What is the purpose of hydraulic floor cranes? To lift the loads To shift the loads Used on lever to lift or lead heavy loads To raise and lower the load None 237. Which is a system of two or more pulleys with a rope threaded between them? Differential hoist Pulley block Spur geared hoist Come along chain hoist None 238. What is the name of the crane? Add description here! Pillar jib crane Gantry crane Travelling crane | Bracket jib crane None 239. What is the name of foundation bolt? Add description here! Eye bolt Bent bolt Rawl bolt Conical washer foundation bolt None 240. Which wire rope strands are twisted in the same direction? Lang lay rope Rigid lay rope Regular lay rope Combined lay rope | None 241. What is the purpose of triangular frame base resting on ground in the frame of derrick lifting equipment? Prevent the vibration Avoid slipping of load Prevent imbalance of load Prevent base from moving under load None 242. Why foundation bolts are essential to machines? Observe vibration Hold machine firmly Improve the production Avoid shifting of machine None 243. What is the material of sling hooks? | Low carbon steel High carbon steel High tensile steel Medium carbon stee None 244. What is the name of the crane? Add description here! Gantry crane | Pillar jib crane Travelling crane Bracket jib crane | None 245. What is the purpose of dynamo eye bolt? Lift vertical load Lower horizontal load | Lead inclined load Suspend radial load None 246. Which crane consists of bridge constructed girders supporting a travelling hoist? Frame derrick crane Gin pole derrick crane Overhead travelling crane Guyed derrick crane None 247. What is the purpose of using lubricant? Increase friction Reduce friction Increase the loading capacity Increase the speed of moving elements None 248. How jib crane is used to move the load? Radially Vertically Horizontally Inclined angle None 249. What is the pipe fitting? Reducer Nipple Cap Plug None 250. Which valve is used to control flow and is only kept in either open or closed position? Gate valve Globe valve Needle valve Non-return valve None 251. Which is used to divert at 45°in pipeline? Elbow Coupling Reducer Branch None 252. Which type of jig do not have base plate? Table jig Plate jig Template jig Template None 253. What is the name of jig? Leaf jig jig Solid jig Angle plate jig None 254. What is the name of clamp? Strap clamp Cam clamp Latch clamp clamp None 255. What is the name of jig? Box jig Post jig Turn over jig Turn over jig None 256. Which type of bush is used in jig to perform more than one operation in same location? Slip bush Plain bush Fixed bush Liner bush None 257. What is the purpose of grooves provided in the c Channel jig 'V' blocks? Reduce the weight Support the work piece Accommodate the clamp alloy thermal expansion None 258. Which is the important factor to determine the construction of fixture? Machining method Location and clamping Tool guiding and frame Size of work piece and tool None 259. Why the balancing weight is provided in the turning fixture? To guide tool To balance the tool To balance worktable To balance irregular workpiece None 260. What is the purpose of setting blocks used in the fixture? Position the balancing weight Position the clamp and locators Position the fixture on machine table Position the fixture and work related to cutter None 261. Which type of fixture is used for machining on evenly spaced surfaces? Plate fixture Vice jaw fixture Indexing fixture Angle plate fixture None 262. Which type of jig is used for awkwardly shaped work piece to drill at different angles? Post jig Solid jig Indexing jig Trunnion jig None 263. Which device holds, supports, locates and also guide the cutting tool for operation? Jig Fixture Chuck Machine vice None 264. What is the name of clamp used in jig? Tooth clamp Latch clamp Toggle clamp Wedge clamp None 265. What is the name of jig? Box jig Drill jig Post jig Leaf jig None 266. What is the method of lubrication? Force feed Gravity feed Splash feed Line feed None 267. Why two or four hold down slots are provided in the base plate of milling fixture? For rigid clamping For guiding the tool For locating workpiece For adjusting the job setting None 268. Which bush is used to provide a hardened hole for renewable bushes? Slip bush Plain bush Fixed bush Liner bush None 269. Which part restrict incorrect loading of component in jig? Clamp Guide plate Locating pin Press fit bush None 270. What is the type of jig ? Post jig Plate jig Indexing jig Angle plate jig None 271. What is the name of clamp? Cam clamp Screw clamp Wedge clamp Toggle clamp None 272. Why tenons are provided at the bottom of base plate of milling fixture? For guiding the tool For clamping purpose For balancing workpiece For proper location of fixture None 273. Which device is used to hold, locate and not guide the cutting tool during machining operation? jig Fixture C-clamp Machine vice None 274. Which type of fixture provides an easy method of holding parts for machining? Turning fixture Vice fixture Milling fixture Grinding fixture None 275. What is the colour of the aluminium metal? Yellow Reddish Whitish grey Silvery white None 276. Which type of belt drive, the driven shaft will rotate opposites to drive shaft? Stepped drive Open belt drive Cross belt drive Right angled belt drive None 277. Which ore produces lead metal? Pyrites Bauxite Malachite Galena None 278. None 279. What is the name of belt fastener? Wire type Lagrelle type Alligator type crescent plate type None 280. What is the name of metal alloy of lead, tin, copper and antimony? Bronze Gilding metal Babbitt metal Leaded bronze None 281. What is the ratio of copper and zinc in 'Mountz metal'? 63:37 60:40 57:43 70:30 None 282. What is the type of gear? Spur gear Miter gear Hypoid gear Herringbone gear None 283. Which metal is extracted from bauxite ore? Zinc Brass Copper Aluminium None 284. Which metal is used in the preparation of paint? Zinc Lead Brass Aluminium None 285. What is the name of part marked X in the belt drive? Step pulley Driver pulley Driven pulley Jockey pulley None 286. Why the small steel wedge is tapped under the machine in lifting operation? prevent vibration reduce the weight accept the crowbar To balance the machine None 287. Which type of gear drive changes rotary movement to linear movement? Hypoid Herringbone Rack and pinion Helical gear None 288. What is the name of the part marked 'x' in gear? Pitch line Dedendum Addendum Face width None 289. How to adjust the tension of belt between two fixed pulleys? By sliding the pulley By fixing idler pulley By adjusting the length of belt By adjusting the screw of pulley None 290. Why vertical belt drives should be avoided in power transmission? Because of small wrapping of belt Because of excessive contact Because of gravitational pull and slippage Because of increase in surface speed of pulleys None 291. What is the name of the coupling? Slip coupling Plate coupling Clamp coupling Universal coupling None 292. Why the face of pulley is 'Crowned' in power transmission? Increase the tension Decrease the tension Keep the belt centralized Allow the pulley free rotation None 293. Which coupling is used in the place for slight relative movement is required? Chain coupling Flange coupling Flange coupling Muff coupling None 294. Which graphical representation of the activities performed during manufacturing? Job card Process chart Batch record form Batch processing form None 295. How to improve the gripping property of the dried belt? Jockey pulley Apply powdered resin Reduce the distance between pulleys Increase the distance between pulleys None 296. None 297. What is the name of the gear? Miter gear Bevel gear Hypoid gear Worm shaft and worm gear None 298. None 299. Why is aluminium used widely in aircraft industries? Light weight Hard and Brittle High tensile strength Low thermal conductivity None 300. Which type of brass sheet is used for deep ore galena? Tin Lead Copper Aluminium None 301. Which metal alloys is used to make friction bearing? | Tin Nickel Chromium Babbitt metal None 302. Which type of bronze metal has got excellent anti friction properties? Low tin bronze Leaded bronze Phosphor bronze Leaded gunmetal None 303. What is the melting point of nickel? 1300°C 1450°C 1100°C 1950°C None 304. What metal is used to make agricultural equipment like ploughs and blades Nickel steel Silicon steel Chromium steel Manganese steel None 305. Which ore is extraction of aluminium? Pyrites Galena Blends Bauxite None 306. Which metal powder is used in calorizing process to prevent corrosion of steel component? Zinc powder Nickel powder Aluminium powder Chromium powder None 307. What is the name the of gear mechanism? Mitre gear Bevel gear Rack and pinion Worm and worm gear None 308. Which coupling will have disengaging provision? Clamp coupling Slip type coupling Universal coupling Plate coupling None 309. What is the percentage of copper in malachite ore? 0.2 0.3 0.55 0.8 None 310. Which drive is used for long distance and larger amount of power transmission? Belt drive Gear drive Rope drive drive None 311. Which metal is basically an alloy of copper and tin? Lead Brass Muntz Bronze None 312. Which type of belt drive is used to obtain different speed ratio? Slip belt drive Stepped drive open belt drive Cross belt drive None 313. Which belt slip less in power transmission? V belt Flat belt Link belt Ribbed belt None 314. Which type of belt length cannot be altered and reused with fastener? V belt Flat belt Link belt Ribbed belt None 315. Which bearing material has poor thermal conductivity? Nylon Teflon Sintered alloys Laminated phenolics None 316. What is the name of washer? Internal type washer External type washer Internal and External washer Countersunk washer None 317. What is the purpose of deep groove type of ball races provided in the ball bearing? To withstand shock To carry journal loads To withstand axial thrust To withstand radial load None 318. Which alloying metal bearing can work at higher temperature and higher load carrying capacity? Cast iron White metal Copper lead alloys Cadmium based alloy None 319. Why the double row roller bearing is used? To take axial load To take radial load To take heavy axial load To take heavy radial load None 320. What is the method of metal coating? Cladding Sherardizing Galvanising Electroplating None 321. What is the purpose of thrust ball bearing? Axial load Radial load Axial thrust load Vertical thrust load None 322. Which metal is used in electroplating to the metal surface to resist corrosion for long period and to retain high polish? Lead Nickel Chromium Aluminium None 323. Which bearing material is used in connecting rod and electrical motors? White metal Sintered alloy Copper lead alloy None 324. What is the operation of a metal coated with other metal to obtain protecting surface? Cladding Galvanising Cementation Cementation None 325. What is the name of part marked 'X'? Ball case Inner race outer race Ball separating gauge None 326. Which metal powder is used in calorizing process to prevent corrosion? Zinc powder Nickel powder Chromium powder Aluminum powder None 327. Which bearing material is used for light loading and low speed application? Cast iron Tin bronze Cadmium based alloy Copper and lead alloys None 328. What is the temperature required to process the chromizing for prevention of corrosion? 900 to 1100°C 1000 to 1100°C 1300 to 1400°C None 329. Which metal has high resistance to chemical reaction? Lead Nickel Copper Aluminium None 330. What is the disadvantage of thrust ball bearing? Cannot take any radial load Cannot take horizontal end thrust Cannot take load on both directions Cannot take any vertical thrust load None 331. What is the name of bearing? Split bearing Bush bearing Solid bearing Journal bearing None 332. Which type of bearing used for very heavy radial load? Ball bearing Bush bearing Needle bearing Double row roller bearing None 333. What is the part marked as 'X' in the bearing? Outer race Ball cage Inner race Rolling elements None 334. Which type of bearing metal is self lubricated? White metal Sintered alloy Aluminium alloy Cadmium based alloy None 335. Which bearing is used in the limited space? Needle bearing Thrust ball bearing Taper roller bearing Angular contact ball bearing None 336. What is the name of the pipe fitting? 45° elbow Long radius elbow Tee joint pipe Short radius elbow None 337. What is the angle of deviations provided on elbows and bends in pipe works? 90° and 45° 30° and 60° 20° and 40° 60° and 45° None 338. How the water flow is stopped from the valve around the stuffing box? Replace the spindle Tightening the bonnet Tightening the hand wheel Packing with asbestos hemp None 339. What is the name of the pipe fitting? Tee joint Eccentric reducer Reducer tee joint Concentric reducer None 340. What is the position of eccentric reducer are used in pipelines? Vertical position Angular position Radius position Horizontal position None 341. What is the name of the pipe fitting? Coupling Long nipple Eccentric reducer Concentric reducer None 342. None 343. What is the remedial measure to stop the dripping of water from household tap even after firmly closed? Replace the tap Replace washer Renew tap spindle Tighten stuffing box None 344. How pipes are classified? Uses Color Shapes Material None 345. Which standard pipe fitting is used to close a pipe line having internal thread? Plug Cap Reducer Coupling None 346. Which type of wrench is used for more than 50 mm diameter pipe to tight with heavy gripping? Strap wrench Foot print wrench Chain pipe wrench Stillson pipe wrench None 347. What is the name of part marked as 'X'? Bonnet Packing Gland nut Shaft or spindle None 348. What is the name of part marked as 'x' in the pipe joint? outer pipe Hemp packing Tapered male thread Parallel female thread None 349. What is the remedy if the spindle rotates continuously so that the gate valve is not closed? Replace the valve Tighten the gland nut Replace the worn out part Renew the gland packing None 350. Which type of pipe joint take branch at 90°? (A)Coupling (B)Tee branch Eccentric reducer Concentric reducer None 351. What is the name of part marked as x? Cutter wheel Adjusting screw Guide rollers Hand lever None 352. What is the capacity of the pipe vice to hold pipes diameter in mm? 68 mm 65mm 63mm 72 mm None 353. Which pipe fitting is used to divert the flow direction of pipe? Union Plug Elbow Coupling None 354. Which type of coupling is used on vehicle propeller shaft? Plate coupling Clamp coupling Slip type coupling Universal coupling None 355. What is the pipe fitting of 90° and its branches may be equal in diameter? Tee joint Elbow joint Coupling joint Union joint None 356. Which valve is used to control flow and is only kept in either open or closed position? Gate valve Globe valve Needle valve Non-return valve None 357. Which is used to divert at 45°in pipeline? Elbow Coupling Reducer Branch None 358. Which type of jig do not have base plate? Table jig Plate jig Template jig Template None 359. What is the name of jig? Leaf jig jig Solid jig Angle plate jig None 360. What is the name of clamp? Strap clamp Cam clamp Latch clamp clamp None 361. What is the name of jig? Box jig Post jig Turn over jig Sandwich jig None 362. Which type of bush is used in jig to perform more than one operation in same location? Slip bush Plain bush Fixed bush Liner bush None 363. What is the purpose of grooves provided in the c Channel jig 'V' blocks?| Reduce the weight Support the work piece Accommodate the clamp alloy thermal expansion None 364. Which is the important factor to determine the construction of fixture? Machining method Location and clamping Tool guiding and frame Size of work piece and tool None 365. Why the balancing weight is provided in the turning fixture? To guide tool To balance the tool To balance worktable To balance irregular workpiece None 366. What is the purpose of setting blocks used in the fixture? Position the balancing weight Position the clamp and locators Position the fixture on machine table Position the fixture and work related to cutter None 367. Which type of fixture is used for machining on evenly spaced surfaces? Plate fixture Vice jaw fixture Indexing fixture Angle plate fixture None 368. Which type of jig is used for awkwardly shaped work piece to drill at different angles? Post jig Solid jig Indexing jig Trunnion jig None 369. Which device holds, supports, locates and also guide the cutting tool for operation? Jig Fixture Chuck Machine vice None 370. What is the name of clamp used in jig? Tooth clamp Latch clamp Toggle clamp Wedge clamp None 371. What is the name of jig? Box jig Drill jig Post jig Leaf jig None 372. What is the method of lubrication? Force feed Gravity feed Splash feed Line feed None 373. Why two or four hold down slots are provided in the base plate of milling fixture? For rigid clamping For guiding the tool For locating workpiece For adjusting the job setting None 374. None 375. Which bush is used to provide a hardened hole for renewable bushes? Slip bush Plain bush Fixed bush Liner bush None 376. What is the type of jig? Post jig Plate jig Indexing jig Angle plate jig None 377. Which part restrict incorrect loading of component in jig? Clamp Guide plate Locating pin Press fit bush None 378. In which of the following lathe, so many tools can work together? None of these Speed lathe turret lathe Bench lathe None 379. Which special file is used for narrow work? Pillar file Square file Dread naught file Swiss pattern file None 380. Why slots are provided in the slotted castle nuts? To fix split pins For good appearance Reduce the weight of nut For easy removal and fitment None 381. What is the name of limit gauge? Plain ring gauge Taper plug gauge Progressive plug gauge Double ended plug gauge None 382. What is the name of gauge? Ring gauge Plug gauge Taper ring gauge Taper plug gauge None 383. Which gauge is used to check the gap between the mating parts? Slip gauge Plug gauge Feeler gauge Radius gauge None 384. Which material is used to clean the slip gauge? Wax Kerosene Soluble oil Carbon tetra chloride None 385. Which material is to wash off the lapping plate after charging? Oil Kerosene Coolant oil Petroleum jelly None 386. None 387. Which material is used to protect slip gauge from rust? Oil Wax Kerosene Petroleum jelly None 388. What is the procedure to built up the slip gauge for particular dimension? Start wringing with the largest slip gauges Maximum number of block Built with grade 0 accuracy Start wringing with the small slip gauge None 389. What is the name of the gauge? Plain snap gauge Thread snap gauge Thread pitch gauge Adjustable snap gauge None 390. Which finishing process have a high degree of dimensional accuracy? Filing Turning Grinding Lapping None 391. Which is the abrasive used for lapping soft steel and non-ferrous metals? Silicon carbide Diamond Boron carbide Fused alumina None 392. Why grooves are provided on the surface of the lapping plate? | To allow expansion To provide clearance To retain the abrasive To permit minor adjustment None 393. What is the method of surface hardening?’ | Nitriding Pack - carburising Flame hardening Induction hardening None 394. What is the method of surface hardening? Nitriding Case hardening Flame hardening Induction hardening None 395. What is the name of the heat treatment process for reheating the hardened steel to a temperature below 400°C followed by cooling? Annealing Hardening Tempering Normalising None 396. Why the tempering process carried out in steel? To add cutting ability To relive strain and stress To refine the grain structure To regulate the hardness and toughness None 397. What is the purpose of annealing in steel? To add cutting ability To increase wear resistance To relieve the internal stress To refine the grain structure of the steel None 398. What is the name of the key? Sunk key Feather key Flat saddle key Hollow saddle key None 399. What is the purpose of key? To transmit torque Assembly purpose Lock the assembly part Permit clearance between mating part None 400. What is the ratio of key way taper? 01:19:00 01:20:00 01:50:00 1:100 None 401. What is the name of key? Taper sunk key Flat saddle key Parallel sunk key Hallow saddle key None 402. Which type of metal screws useful for self tapping on hard or brittle materials? Self piercing Thread cutting Thread forming Hammer driven screw None 403. What is the advantage of wing nut? In coach building work Heavy duty assembly work Loosen and tighten without wrench Provide decorative appearance None 404. What is the name of gauge? Pitch gauge Angle gauge Feeler gauge Radius gauge None 405. Which gauge is used to check the accuracy of an external thread? Snap gauge Thread ring gauge Thread plug gauge Centre gauge None 406. What is the instrument used in measuring external diameter? Vernier caliper Outside caliper Parallel leg caliper Pair of special jaws by using slip gauge None 407. Find out the height of slip gauge ‘a’?(sin 25° = 0.4226) 84.50 mm 84.52 mm 84.51 mm 85.20 mm None 408. How many set of feeler gauges are available as per BIS? Set No: 1, 2 Set No: 1, 2, 3, 4 Set No: 1, 2, 3, 4, 5 Set No: 1, 2, 3, 4, 5, 6 None 409. What material is used to make radius and fillet gauge? Tool steel Hardened steel sheet High carbon steel Medium carbon steel None 410. What is the part marked as ‘x’ in lapping tool? Slit Bush Sleeve Groove None 411. What is the purpose of slit provided in the lapping tool? For clearance For expansion To retain abrasive To adjust the sleeve None 412. What is the name of operation? Internal ring lapping External ring lapping Lapping internal cylinder Lapping large diameter None 413. What type of abrasives are used in honing cast iron and non-ferrous materials? Diamond Boron carbide Silicon carbide Silicon carbide None 414. Which method of surface hardening, the surface remains free from scales? Nitriding Case hardening Flame hardening Induction hardening None 415. What is the process if the steel is heated above critical temperature and soaking it for sufficient time and cooling it very slowly within furnace? Annealing Hardening Tempering Normalising None 416. What is the process to refine the structure of steel component? Tempering Annealing Hardening Normalising None 417. Which method of surface hardening is done in a heated salt bath? Flame hardening Gas carburising Pack carburising Liquid carburising None 418. What is the name of part marked as X? Taper shaft Splined shaft Serrated shaft Screw pitch gauge None 419. Which key has rectangular cross section is fit into keyway cut on both shaft and hub? Sunk key Feather key Flat saddle key Hollow saddle key None 420. Which key is useful for fitting on tapered shafts? Feather key Gib head key Woodruff key Flat saddle key None 421. Where is circular taper key used? Light duty transmission Bi-directional rotation Lengthy shaft Tapered shaft None 422. How the plain bearings are kept in a position without allowing them to rotate along with the shaft? By clamps By bolt and nut By key or screws By locking device None 423. What is the name of key? Flat saddle key Taper sunk key Parallel sunk key Hallow saddle key None 424. What is the name of key? Sunk key Feather key Gib head key Wood ruff key None 425. What is the ratio of concrete mixture of cement, sand and stone for foundation? 1:2:4 2:1:4 4:2:1 4:1:2 None 426. What is the purpose of straight edge? Keep sag with permissible limit To measure the length of object To test straightness of the object | To test the level of the object None 427. Which material is used to make block sprit level? White cast iron Tool steel High carbon steel Stress free cast iron or steel None 428. What is the purpose of straight edge? Testing parallelism Testing straightness Testing concentricity Testing eccentricity None 429. What is the purpose of rollers placed under the equipment? To move easily To lift easily To lower easily To raise easily None 430. Why the lifting pockets are provided with the equipment? Place the steel wedge Provision for bolt and nut Place the crowbar for lifting Position the roller for moving None 431. What type of liquid is filled in the curved glass tube of sprit level? Petrol Benzine Distilled water Industrial alcohol None 432. What is the name of foundation bolt? Rag bolt Eye bolt Rawl bolt Bent type bolt None 433. Which crane is used in remote place and offsite? Gantry crane Pillar jib crane Travelling wall crane Truck mounted crane None 434. Why geometrical test is carried out while testing machine tool? Performance of machine Check the level of machine Check the skill of operation Grade the accuracy of machine None 435. None 436. How many types of test mandrels are available for geometrical test? 6 2 4 3 None 437. Which grouting process is unaffected by oil or grease? Lead grout Sulphur grout Cement concrete grout Clay and lime mixed grout None 438. What is the purpose of crow bar? To raise the loads To suspend the loads To lift and move the loads To lower the load None 439. What material is used as a grouting for steam turbines? Lead Sulphur Clay, lime, brick grout Cement concrete grout None 440. What is the name of crane? Gantry crane Pillar jib crane Travelling wall crane Truck mounted crane None 441. What is used for checking the horizontal and vertical levels of a machine? Mason level Block spirit level Simple spirit level Precision spirit level None 442. What is the operation performed before geometrical tests on machines? Erecting Inspecting Levelling Grouting None 443. Which wire rope strands are twisted in the opposite direction? Regular lay rope Rigid lay rope Land lay rope Combined lay rope None 444. Which tool is used in inspection during the acceptance tests of new machines? Steel rule Plumb bob Try square Test mandrels None 445. Which type of rope is used for heavy duty hoisting? Wire ropes Yarn ropes Cotton ropes Manila ropes None 446. How jib crane is used to move the load? Radially Vertically Horizontally Inclined angle None 447. What is the purpose of using lubricant? Increase friction Reduce friction Increase the loading capacity Increase the speed of moving elements None 448. None 449. Which crane consists of bridge constructed girders supporting a travelling hoist? Frame derrick crane Gin pole derrick crane Overhead travelling crane Guyed derrick crane None 450. What is the purpose of dynamo eye bolt? Lift vertical load Lower horizontal load Lead inclined load Suspend radial load None 451. What is the name of the crane? Gantry crane Pillar jib crane Travelling crane Bracket jib crane None 452. What is the material of sling hooks? Low carbon steel High carbon steel High tensile steel Medium carbon steel None 453. Why foundation bolts are essential to machines? Observe vibration Hold machine firmly Improve the production Avoid shifting of machine None 454. What is the purpose of triangular frame base resting on ground in the frame of derrick lifting equipment? Prevent the vibration Avoid slipping of load Prevent imbalance of load Prevent base from moving under load None 455. Which wire rope strands are twisted in the same direction? Lang lay rope Rigid lay rope Regular lay rope Combined lay rope None 456. What is the name of foundation bolt? Eye bolt Bent bolt Rawl bolt Conical washer foundation bolt None 457. What is the name of the crane? Pillar jib crane Gantry crane Travelling crane Bracket jib crane None 458. Which is a system of two or more pulleys with a rope threaded between them? Differential hoist Pulley block Spur geared hoist Come along chain hoist None 459. What is the purpose of hydraulic floor cranes? To lift the loads To shift the loads Used on lever to lift or lead heavy loads To raise and lower the load None 460. Which cutting oil is used in automatic lathes? Soluble oil Fatty oil Compounded (or) blended oil Straight mineral oil None 461. Which type of clutch is used for machine tools to connect transmission gear box in driving motor? | Cone clutch Multiplate clutch Air clutch Centrifugal clutch None 462. Which cutting fluid is used for turning copper? Kerosene Mineral oil Soluble oil Lard oil None 463. Which is the property of the oil catches fire and continues to be in flame? Flash point Fire point Pour point Oiliness None 464. Which type of lock washer used with flat or oval type head screw? External type Internal type Counter sunk type Internal and external type None 465. Which cutting fluid is used for heavy duty machine with less cutting speed? Synthetic fluid | Straight mineral oil Fatty oil Soluble oil None 466. Which cutting fluid is used for threading in general purpose steel? Soluble oil Lard oil Kerosene Dry None 467. What is the colour of soluble oil mixed with water? White Blue Yellow Violet None 468. Which coolant oil is emulsified with water? Soluble oil Kerosene Mineral oil Lard oil None 469. What is the method of lubrication? Oil pump method Gravity method Splash method Oil can method None 470. What is the name of the part marked as ‘X’? Inner piece Outer piece Rubbing surface Centrifugal weight None 471. What is the name of the clutch? Dog clutch Cone clutch Air clutch Centrifugal clutch None 472. What is the name of symbol marked as X? Daily Weekly Monthly Scheduled for frequency other than above None 473. Cylinderical plug gauge is the type of. Double ended plug gauge Progressive plug gauge Plain plug gauge All of these None 474. Which gauge is used to check external diameter of Taper plug gauge Progressive plug gauge Taper ring gauge Plain ring gauge None 475. Which gauge is used to check both the external diameter of a taper and its precision? Taper ring gauge ) Plain ring gauge Taper plug gauge Snap gauge None 476. What is the size of snap gauge? Circular Rectangular V-shape Shape of tube None 477. In checking the ingredient in go and no go theroy which side of the limit gauge should be in its Go-end NO-GO end (a) and (b) both None of these None 478. Which plug gauge are used to check the diameter of the hole? Double ended plug gauge Progressive plug gauge Plain ring gauge Taper plug gauge None 479. Which gauge is used to check the size of the hole and the authenticity of the taper? Taper ring gauge ) Plain ring gauge Taper-plug gauge Snap gauge None 480. Which gauge is used to check the precision of external thread? Thread Ring gauge Thread plug gauge Snap gauge Taper ring gauge None 481. What is the amount of carbon in high carbon steel? 0.8 to 1.4% 0.2 to 4% 2 to 5.4% 0.1 to 1.50% None 482. The diameter of the drill gauge is determined by drill gauge ..? Twist Flat Center All of these None 483. Which of these gauges is used to check the spherical hole? Thread plug gauge Form plug gauge Taper plug gauge Round plug gauge None 484. Which gauge is used to check the threaded hole or mu? Thread plug gauge Taper plug gauge Round plug gauge Form plug gauge None 485. how Which of there gauge is not the type of ring gauge? Plain ring gauge Taper ring gauge Round ring gauge Form ring gauge None 486. The snap gauge is also known as Plain gauge Caliper gauge Limit gauge Form ring gauge None 487. Caliper Snap Gauge is made to check the object in many mm? 200 to 300 mm 100 to 200 mm 200 to 600 mm 100 to 400 mm None 488. Dial test indicator measure Difference between two surfaces. Actual measurement. Measure job straight Show the small difference in big way None 489. Dial test indicator works on principle. Converting reciprocating motion into linear motion. Make it big by electronic system. Make it slight difference into bigger by lense By rack and pinion, the difference of size into bigger size by mechanical system shown on dial. None 490. Filler gauge is used to check Surface roughness Difference between two parts Radius of job Difference between two holes None 491. Working of feeler gauge To set the play between parts ) To get desire fitness Outer job measurement None of these None 492. Centre gauge is used To check thread pitch Making of tool angle See the fitness of thread To fix the tool at proper height None 493. To check the tool for metric thread Screw pitch gauge Thread gauge Centre gauge Tool angle gauge None 494. To check the thread per inch Ring gauge Screw pitch gauge ) Metric rule Tool gauge None 495. For fixing thread tool Try square Thread gauge Centre gauge Tool close contact with job face None 496. Sine bar is made of High speed steel Chrome alloy. High carbon steel Stabilized chromium steel Sine bar is used to check None 497. Roller and ball are used to get accurate measurement because More accurate Hardness Easy to make Point line or contact None 498. V-groove 1/2 angle measurement by standard roller is used. What ratio is used in Fig triangle? AB/AD BD/AD BD/AB AD/AB None 499. Screw threads are Permanent fasteners. Temporary Semi-permanent None of these None 500. The largest diameter of screw threads is measured over the ........ of the threads Crests Pitch Axis None 501. The longitudinal centre line through the screw is called. Angle of thread Pitch diameter Axis of screw None of these None 502. The distance from a centre on one thread to corresponding centre point on the next is called Crest Pitch Lead Flank None 503. The top surface joining the two sides of threads is called Lead Pitch Crest None of these None 504. The bottom surface joining the two sides of thread is called Root Crest Pitch Lead None 505. The distance between the crest and the root of a thread measured to the axis is called Depth of thread Thickness of thread Root Flank None 506. Movement of more than one thread is called Start One thread Multi start thread None of these None 507. A nut must be turned is a clockwise direction to screw on it, is called Left hand thread Right hand thread Multi-start thread None of these None 508. In metric system, the pitch is expressed in Millimeters Centimetres Inches Metres None 509. In British system, the pitch is expressed in Millimeters Centimetres Inches None of these None 510. The threads having coarse pitches is called B. S. W. threads B.S.F. threads B.S.P. threads None of these None 511. The distance a screw thread advances along the axis in one turn is called Pitch Lead B.S.W. None of these None 512. Thread angle of isometric thread is 45° 50° 55° 60° None 513. . For transmission of motion and power threads are used Trapezoidal Square Buttress None of these None 514. Acme thread is the modified form of thread. Square Buttress Acme None of these None 515. In railway carriage coupling thread is used. Knuckle Buttress Acme None of these None 516. The internal parts of the threads can be checked by.... Screw Gauge Ring thread Gauge Thread Gauge None of these None 517. The external threads can be checked by gauge. Ring thread thread Screw Pitch none of these None 518. Three wire process consists. anvils One Two Three Four None 519. Taps are made from Cast iron Wrought iron High carbon steel None of these None 520. Which tapping lubricant is used for Aluminium ? ) Lard oil Kerosene Dry None of these None 521. Which threading lubricant is used for cast iron ? Dry Lard oil Kerosene None of these None 522. Use of excessive power, tap breakage is High Low Medium None of these None 523. These files are available in square, rounded and tringular shapes. Riffler file ) Mill-saw files Barrette file Cant files None 524. These file is also known as fish-back file Crossing file Mill-saw file Thinker's file None of these None 525. Head angle of cant file is 30° 120° 60° 90° None 526. These files are used on lathe. Band file Block file Lathe file Barrette file None 527. These files are available in various sets Lathe file Needle file Cant file Barrette file None 528. Needle files are available in length of 120 mm to 180 mm 100 mm to 160 mm 80 mm to 120 mm None of these None 529. Files should be kept away from tools Barrette files Other hand Drilling None of these None 530. For trimming of rough edges ____are used Rough Bastard files Obie Sceond cut Smooth None 531. For high degree of accuracy............... files are used. Dead smooth Bastard Rough Smooth None 532. Files are classified in Roughness ) Length ) Grades None of these None 533. For special purposes files are used. Rough Dead smooth Special None of these None 534. These files have single cut teeth on faces. Riffler files Mill-saw files Barrette file None of these None 535. In lock nut locking arrangement nuts Three Two ) Four Five None 536. Check nuts used in locking arrangement have different Breadths Lengths Heights None of these None 537. Check nuts are held together by ) Friction Lubrication Tightening None of these None 538. In wire locking, ....... is used Nut Bolt Wire Washer None 539. The nut containing nylon and fibre rings is called Check Nut Simmond's Nut Wire Lock Nut Swan Nut None 540. The head of swan nut is made Hexagonal Triangle Rectangle None of these None 541. In slotted nuts_______pins are used Long Wired Steel Taper None 542. ______washers are used under the nut Long Spring Strong None of these None 543. In housing, holes and bores, circlips are used External Internal Radial None of these None 544. In shafts_____circlips are used External Internal Radial None of these None 545. Circlips can be classified in classes Two Three Four Five None 546. In these rings, lugs are made in internal section of the ring. Basic Internal Ring Basic External Ring Inverted Internal Ring None of these None 547. . Axially assembled rings have. Small Wide gap Smaller none of these None 548. These rings have wide gap. E-rings Crescent Shaped Ring Shoulder Rings None of these None 549. Gauges are... measuring instruments ) Variable Fixed Adjustable None of these None 550. Limit plug gauge is used to check size of the job Internal External Variable None of these None 551. Limit plug gague may be ........... ended Single Double (a) or (b) None of these None 552. Cylindrical plug gauges are of type Two Three Four Several None 553. This gauge is used to check the diameter of straight hole Double-ended plug gauge Single-ended plug gauge Progressive plug gauge None of these None 554. Go-gauge of progressive plug gauge checks the....... limit of the hole. Lower Upper Middle None of these None 555. Taper plug gauge is used to check the of the taper. Length Breadth Accuracy None of these None 556. This gauge is used to check the dimensional Fill accuracy of the internal thread Taper plug gauge Thread plug gauge Taper ring gauge None of these None 557. Taper cylindrical job can be checked by Taper ring gauge Taper plug gauge Plain ring gauge None of these None 558. In this gauge, the NO-GO gauge is identified by an annular groove. Thread plug gauge Thread ring gauge Snap gauge None 559. In this gauge the grooves are cut on the knurled surface. Taper plug gauge Plain ring gauge Thread ring gauge Thread plug gauge None 560. This guage is used to check the size of the parts. Taper plug gauge Tapr ring gauge Snap gauge Thread plug gauge None 561. Adjustable caliper gauges are made of shaped. A B C D None 562. Adjsutable caliper gauge are used to check size of the parts External Internal (a) & (b) both None of these None 563. Centre gauge is made of Steel plate Iron plate Copper plate Aluminium plate None 564. The main medium of transmission of power Pulley Shaft Gear Cam None 565. During the use of shaft, the medium used to hold and support the shaft is called Pulley Gear Cam Bearing None 566. The system which provide support to rotating parts of machine is called Pulley Bearing Cam Gears None 567. There are............... types of bearings Two Three Four None of these None 568. Pressure of radial bearing makes an angle of ............... with the axis of shaft 60° 90° 120° 180° None 569. Journal bearing made of Aluminium Brass Gun metal (b) and (c) both None 570. Radial bearings are made in Two Three Four None of these None 571. Radial bearings are fitted in ) Shaft Pulley Housing None of these None 572. Thrust bearing is also known as.............. Collar bearing Radial bearing Shaft None of these None 573. In ................ bearings pressure always acts parallel to axis of shaft Plain Thrust Ball Split None 574. bearings never rotate with shaft Plain Thrust Split None of these None 575. According to work plain bearings are of types. two three four five None 576. hese bearings are made in round shape and have a hole for lubrication. Thrust bearings Solid bearings Split bearings None of these None 577. ________________bearings are used for slow moving Thrust Solid Split None of these None 578. These bearings have two halves. Thrust bearings Solid bearings Split bearings None of these None 579. These bearings are fitted in cast iron housings. Thrust bearings Solid bearings Split bearings None of these None 580. These bearings are generally made of alloy steel. Thrust bearings Solid bearings Split bearings Anti-frictional bearings None 581. These bearings can rotate heavy load without interruption. Anti-frictional bearings Thrust bearing Split bearings None of these None 582. These bearings have steel ball Plain bearings Thrust bearings Split bearings Ball bearings None 583. This type of bearing is used for high speed and low load. Angular contact bearing Ball bearing Split bearing None of these None 584. This type of bearing is used for high speed and heavy load. Angular contact bearing Radial contact bearing Centre contact bearing None of these None 585. These bearings are used for side thrust Thrust bearings Solid bearings bearing Double row ball None of these None 586. Pipe is measured by_____________diameter Internal External (a) and (b) both None of these None 587. For holding and turn the pipes, wrench is used Chain pipe Pipe vice Pipe None of these None 588. Which device prevent to rotating the pipes ) Folding vice Pipe vice Pipe wrench None of these None 589. The pipe vice can hold the pipes upto_____________ mm dimater 60 62 63 64 None 590. For 50 mm to 150 mm pipes which wrench is used. Chain pipe wrench Pipe wrench Pipe vice None of these None 591. The pipe dies are available upto inches 1/2"-1/4" 1/4"-4" 1"-4" None of these None 592. The pipe cutters are used to cut the pipe of ..... cm diameter. 1.0 to 7.0 cm 2.5 to 8.5 cm 1.5 to 7.5 cm None of these None 593. The name of the device for bending the pipes is Pipe cutter Pipe threading tap Pipe bending machine Pipe die None 594. Tripod stand is the part of Portable pipe bender Bench type bender Hydraulic bending machine None of these None 595. Adjusting screw with lock nut is used in bender. Portable pipe Bench type pipe Hydraulic pipe None of these None 596. Pressure release valves are used in.............. bender Portable pipe Bench type pipe Hydraulic pipe None of these None 597. Base plate is used in .............. bender. Portable pipe Hydraulic pipe Bench type pipe None of these None 598. G.I. pipes are made from................ Mild steel with zinc Mild steel Cast iron Wrought iron None 599. Conduit pipes are known as.............. G.I. pipes M.S. pipes Flexible pipes None of these None 600. These pipes are made from mixture of cement, concrete and sand. G.I. pipes M.S. pipes RC.C. pipes Asbestos cement pipes None 601. To connect two pipes of same diameter, ............ is used. Socket Tee Elbow Bend None 602. The elbow is bent at....... angle. 60° 90° 120° 180° None 603. For extention of shorter length of pipe, ............... is used. Nipple ) Union Plug Reducer None 604. For taking connection from big lines to the houses, ................ is used. Ferool Flange Nipple Bend None 605. The system in which one main shaft is used which is fixed near the roof is called Individual drive Common dirve Rope None of the above None 606. The system in which each machine has a motor and starter is called Individual drive Common drive Rope drive None of these None 607. The electrical motor transmits the power to the shaft which has many pulleys is called Belt Prime mover Pulley None of these None 608. The medium by which the pulleys a connected is called are to be Belt Pulley Gears None of these None 609. ........ is used to transmit the power. Belt Pulley Gears None of these None 610. When distance between and driven shafts is drive is used. more ) Common drive Individual drive Rope drive Belt drive None 611. When two shafts are arranged parallel, belt drive is used Stepped Open Cross ) None of these None 612. In this drive, the driving and the driven pulleys rotate in opposite direction ) Cross belt drive Open belt drive Stepped belt drive None of these None 613. In this drive the power is transmitted on the right angle. Cross belt drive Open belt drive Right angle belt drive Stepped belt drive None 614. When the driving pulley stops the rotation, it is called Cripping Sliping Velocity ratio None of these None 615. This pulley can be easily opened and carried from one place to another place. Solid pulley Split pulley ) Step pulley Split pulley None 616. This pulley is made by three or more pieces of metal Solid Split pulley Stepped pulley V-pulley None 617. This type of pulley has half cylindrical concave V-pulley Stepped pulley Chain pulley Jockey pulley None 618. This pulley increases wrapping angle of pulley. V-pulley Rope pulley Jocky pulley Loose and fast pulley None 619. In this system two shafts are joined. Safety type coupling Plate coupling Clamp coupling None of these None 620. One micron value is 0.01 mm 0.001 mm 0.0001 mm 0.00001 mm None 621. Lap metal should soft than the Lapping Honing Scraping mm. Filing None 622. .................is hard abrasive for lapping Silicon carbide Aluminium Diamond Silver None 623. Corundum abrasive is less hard than. Silicon carbide Aluminium Diamond Silver None 624. ___________________ honing should be used for good polish finishing Dry Wet Non dry Non wet None 625. surface is well finished by the honing machine Flat Vertical Horizontal Cylinderical None 626. ........... is a permanent anti-corrosive treatment. Electroplating Galvanizing Honing Lapping None 627. ...............is a semi-permanent anti-corrosive treatment. ) Electroplating Galvanizing Honing Lapping None 628. ...........................mm allowance is kept for the lapping and honing 0.01 0.001 0.0001 0.00001 None 629. Faults appears in lapping if.............. compound is correct Honing Lapping Galvanizing Electroplating . None 630. Honing stone is used in. Honing Lapping Galvanizing Electroplating None 631. Honing operation is done only by the Hand Machine Manual Power None 632. Lapping operation is done by both hand and Hand Machine Manual Power None 633. Honing stone is also called Hone Abrasive Bond Lap None 634. Honing working speed is more than Honing Lapping Galvanizing Electroplating None 635. .................is not required in lapping. Coolant Lubricant Dry Wet None 636. ..........honing stone is used for honing on the steel Silicon carbide Diamond Abrasive Key: Aluminium oxide None 637. The lower critical temperature of high carbon steel is 900°C 960°C 560°C 723°C None 638. Meaning of annealing is To bring the metal in soft condition To make the metal hard To make the metal good To correct the metal structure None 639. In H.S.S. Hardening, the soft materials make to red hot then put those for cooling in Oil ( Air ) Water Cow slag None 640. . What is tempering To minimise brittleness and increase the toughness of metal Hardening of cutting edge Checking of cutting edge with template Sharpening of cutting edge None 641. Heating of carbon steel in furnace at 730°C and then cooling it in that furnace is called Case hardening Hardening Tempering Annealing None 642. High strength nut and bolt make to Hard Case hard Temper Nitride None 643. Case hardening is done on... Cast iron High carbon steel High speed steel Mild steel None 644. To remove the higher brittleness of chisel...... Tempering Hardening Carborising Annealing None 645. Carbon steel temper at 200°C to 300°C 100°C to 150°C 550°C to 600°C 400°C to 500°C None 646. . To get the desired property of steel by heating and cooling process Normalizing Hardening Heat treatment Tempering None 647. Annealing is done for..... To increase the machining properties To increase the hardness To increase the toughness To reduce distortion None 648. Heating at proper temperature according to steel quantity then cooling at room temperature, this process is called Annealing Normalising hardening Tempering None 649. Which one is having combine state of carbon in carbon I Steel Wrought iron Pig iron Cast iron or iron alloy None 650. . Name of the process having fine grains structure and mechanical properties Annealing Tempering Normalising Austenite None 651. It is a chemical combination of iron and carbon. Ferrite Cementite Austenite Pearlite None 652. Steel having 0.83% carbon contents has Hardness ) Strength Malleability ) Ductility None 653. It is a liquid of Gama iron and carbon Ferrite Cementite Austenite Pearlite None 654. The steel which has 0.83% of carbon, it increases the of steel Hardness Strength Malleability Ductility None 655. Steel having increase carbon is Hardness increases Strength increases Strength decreases Ductility improves None 656. The process to increase toughness and decrease brittleness is called....... Tempering Hardening Normalising Carborising None 657. To make suitable for machinery the hard job to be. Tempering Hardening ) Annealing Normalising None 658. The process to hard outer surface of low carbon steel is called.... Tempering Hardening ) Annealing Case hardening None 659. Case hard job less wornout and withstand Jerk less Pointed Marks None 660. The temperature for carbonising is............. centigrade 700°C-800°C 1000°C-1500°C 900°C-950°C None of these None 661. .... is used to give support to shaft and to provide smooth speed for shaft Bearing Shaft Hole Gear bearing None 662. Half bearing is a Friction Housing Shell Ball None 663. .... is called white metal or babit metal bearing. Friction Housing ) Shell Ball None 664. Roller bearing can withstand more heavy load than....... Friction Housing Shell Ball None 665. .............. is used to extract out bearing Ezy extractor Pusher Bearing puller outer spanner None 666. Taper roller bearing is.............. bearing ) One end thrust Ball Shell Friction None 667. Bush bearing is used for High Ball Medium Outer spanner None 668. Where bearing is fitted that place is called.. Friction Housing Shell bearing Ball bearing None 669. Due to less............... in roller bearing less friction is produced Contact point ) Contact area ( Contact volume All of these None 670. In thrust bearing load is Parallel Flat All above Taper None 671. . Lubricant used in bearing is..... Grease Mobile oil Coolant Carbide bearing. None 672. The bearing which gives support to bearing on right angle to axis of shaft is called Ball ) Shell Journal Housing None 673. Flat shape bearings are made of Mild steel metal. Stainless steel Cast iron Gun metal None 674. Barrel roller bearing is also called Self-alignment roller Ball roller Pin type All of these None 675. For high speed and load the bearings are made of Brass Gun metal Bronze Mild steel None 676. Self lubricant bearings are made by mixing powder of copper, zinc and Gun metal Carbide Graphite Cadmium None 677. Ball bearings are made of nickel and Chromium steel Gun metal Mild steel Wrought Iron None 678. The bearing which gives support to moveable part is called Friction bearing ) Housing Cylinderical Ball None 679. The inner surface of shall bearing is made of white metal or Babit metal Gun metal C-Type None 680. Before the lining of white metal in shell bearing is necessary to do Galvanizing Tining Electroplating Coating None 681. What is the part called which connect two shafts in straight line. Bearing Supporter Coupler Pulley None 682. Which bearing is used for shaft of big diameter. Plain bearing Shell bearing Bush bearing Pedestal bearing None 683. Which bearing is used for high speed... Anti-frictional Roller bearing Needle bearing All of these None 684. Which is the material used for flat shape bearing.. Gun metal Cast iron Iron Copper None 685. Which bearing is used in spindle of drill machine Ball bearing Plain bearing Pedestal bearing All of these None 686. Which bearing is used where shaft is not in straight line...... Self-alignment bearing Needle bearing Pedestal bearing Anti-frictional bearing None 687. What is the reason to have less friction in roller bearing Oil Grease Contact area All of these None 688. Which device is used to give support to long shaft.. Gear Bearing Clutch Coupling None 689. Babit bearing is used for.. Light load (work) ) Heavy load Above both None of these None 690. Friction bearing is made of which metal.. White metal Babit metal Bronze Above all None 691. ...........is used to give support or align the rotating parts of machines or long shafts. Wheel Guard Bracket Bearing All of these None 692. For low speed and heavy load the bearings are made of which metal? Brass Caste Iron White metal Babit metal None 693. For high speed and heavy load the bearings are made of which metal? Cast Iron Brass ) Brass White metal None 694. Types of bearings are- Flat bearing Round bearing Both (a) & (b) None of these None 695. What is the another name for flat shape bearing? Rollar bearing Guide bearing Chrome bearing None of these None 696. When shaft gets load from all the direction, then it is called? Thrust Load Radial Load Lathe Load All of these None 697. To connect two pipes of same diameter ... used. Socket Plug ) Elbow Union threads. None 698. Socket has.............. .threads External Internal Threadless All of these None 699. To connect two pipes of different diameter........... used. Socket Plug Elbow Reducing Socket None 700. The one end of ...........has big diameter and second small diameter. Socket Plug Elbow Reducing Socket None 701. Both the ends of reducing socket has the. thread. External Internal Threadless All of these None 702. ............. is used to take pipe line from the center of pipe line at 90° angle. T L Z P None 703. To connect the length of pipes.... is to use and not necessary during positioning of pipe line Socket Union Elbow Cross None 704. To close the end of pipe line............ is used. Socket Union Elbow Plug None 705. To connect the big diameter of pipes..... is used and tight with nut bolt to increase the length of pipe Flange Socket Union Elbow None 706. Where there is number of branches in pipe line then to control the branch line........... valve is used Gate Stop Non-return Globe None 707. The flow of pressure can be reduced, increased or closed by............ valve Gate Stop Non-return Globe None 708. ...............is a type of device which is used to grip pipe properly Leg vice C-clamp Pipe vice All of these ( None 709. By using....... in chain the pipe can be tight or loose. Pipe wrench Chain wrench Pipe vice All of these None 710. ..............is used to cut the pipe. It has three rollers Pipe die Pipe cutter Power saw All of these None 711. To cut external thread on pipe...... is used Pipe die Pipe cutter Power saw All of these None 712. To cut internal thread on pipe........... is used. Pipe tap Pipe die Pipe cutter Power saw None 713. Which pipe is used by fire brigade...... ) Canvas pipe G.I. Pipe Hose pipe Brass pipe None 714. Which pipe is used in electrical wiring... Conduit pipe R.C.C. pipe Hose pipe G.I. pipe None 715. Which accessory is used to connect two pipes in straight line.... Socket Elbow Cross "T" 22. None 716. To connect pipe on all four sides accessories used is... Cross "T" Elbow Valve None 717. What is made from 'V' alloy ) Engine piston Engine heat Cylinder block Crank shaft None 718. Where is Aluminium ore found? In Mines In Forge In Sea ) All of these None 719. Y alloy is made with nickle, copper and Brass Cadmium Bronze Manganese None 720. Aluminium ore is known as Crystal Manganese Bauxite All of these None 721. What is the colour of aluminium? blue Sky blue bright white All of these None 722. Tensile strength of aluminium is Very high High Medium Very less None 723. Pure form of aluminium is Light and Hard Light and Soft Hard and Soft All of these None 724. . Aluminium is of heat and electricity Bad conducter Good conductor Non-conductor All of these None 725. Melting point of aluminium is 440°C 600°C 700°C 344°C None 726. Duralunium contains. silicon. aluminium and 20:10 40: 15 80: 10 84: 12 None 727. Types of non-ferrous. Copper Aluminium Tin All of these None 728. What is the other name of copper? Copper Pyrite Copper Crystal Copper Ductile All of these None 729. What is the melting point of Copper? 1800°C 1784°C 1083°C 1500°C None 730. What is the melting point of zinc? 415°C 500°C 510°C None of these None 731. What is called as lead ore? ) Gelnayak Galina Tin stone All of these None 732. What is the colour of Antimony? Black-white Green-yellow Bright white Blue-black None 733. Which of these brass is used? Engineering works In domestic utensil In making pipe sheet None of these None 734. Which metal is not attracted by magnet? Non-ferrous metal Ferrous metal (a) and (b) both ) None of these None 735. The curved end of a crowbar is used as first-class lever second-class lever third-class lever None of the above None 736. Crowbars are also known as press bars wedge bars pry bars split bars None 737. Why do masons prefer to use plumb bob with nylon string? It is cheap ) It is more accurate It can stand dampness It is easy to carry None 738. Which one of the following is not a basic component of wire rope? Wires Strands Core Base None 739. Preventive maintenance is the overall lubrication and repair work carried out by the maintenance section in advance of the machine coming to breakdown. the maintenance work for any fault noticed during working done to prevent the maintenance of machines. none of the above None 740. Leveling bolts are used for supporting the load for machine adjusting the height of machine rigidity of machine none of the above None 741. Which one of the following tests is carried out after overhauling and reconditioning of machines? Periodic acceptance test Geometrical test only Performance test only None of the above None 742. The permissible deviation for leveling of machine is 0.03/100 mm 0.03/200 mm 0.03/300 mm 0.03 / 400 mm None 743. Which one of the following is used for checking run out of the internal taper of machine spindle? Dial test indicator Test mandrel and dial test indicator Precision height gauge Test mandrel and precision height gauge None 744. The sensitivity of precision spirit level is 0.02 to 0.05/100 mm 0.02 to 0.05/200 mm 0.02 to 0.05/500 mm 0.02 to 0.05/1000 mm None 745. A concrete mixture ratio is given as 1:2:4. Which one of the following indicates the numbers? One part cement, two parts sand and four parts stone One part stone, two parts cement and four parts sand One part sand, two parts stone and four parts cement One part cement, two parts stone and four parts sand None 746. The study of pneumatics deals with system operated with air water oil solid None 747. Which one of the following is not true about use of air in pneumatics? Air is available everywhere Air requires no return lines Air is explosive Air is non-pollutant None 748. . In a pneumatic system, a sensor serves the purpose of Transmission Control Feedback Storage None 749. The power source in a pneumatic system is Air receiver Compressor Valve Muffler None 750. The storage space for a fluid is called Strainer Reservoir Plug ) Pump None 751. Which one of the following is a type of acturator in hydraulic system? Pump Valve Strainer Cylinder None 752. Which one of the following is the advantage of pneumatic system? For low cost layout For increasing the rate of production For better working environment All of the above None 753. A lubricant is necessary to run the machine smoothly taking least load run the machine quickly stop the machine immediately produce workpiece of greater accuracy None 754. The general ratio of soluble oil and water used as coolant is 10:1 1:10 1:20 20:1 None 755. The best example for semi-liquid lubricant is grease graphite castor oil lard oil None 756. Best example for gravity feed lubrication is grease gun ring lubricator tell-tail lubricator wick feed lubricator None 757. Most common type of cutting fluid used in almost all the machining operations is water soluble oil compressed air None 758. Fire point is the temperature at which an oil gives off sufficient vapour to burn it continuously when ignited the temperature at which an oil will cease to flow when cooled the lowest temperature at which an oil gives off sufficient vapour to support a momentary flash without actually setting fire the temperature at which fire is produced None 759. Graphite is a liquid lubricant semi-liquid lubricant solid lubricant none of the above None 760. The best example for splash lubrication is ring lubricator ) wick feed lubricator ( grease gun pump lubricator None 761. . Slideways of a machine are frequently lubricated by oilcan grease gun ring lubricator wick feed lubricator None 762. Which one of the following is the reason that tap water is not preferred as coolant on machine tools? It decreases cutting action of the tool Danger of corrosion It has insufficient cooling effect Due to high cooling effect the cutting edges of tool break off None 763. Which one of the following frictions occurs in an un- lubricated journal bearing? Sliding friction Rolling friction Fluid friction Dry friction None 764. In which one of the following materials no cutting oil is used when drilling? Tool steel Grey cast iron Copper Aluminium None 765. The effective cutting of steel with hand hacksaw, which one of the following coolants is suitable? Cutting oil Grease Lard oil Kerosene oil None 766. Which among the following is NOT the purpose of grease? Carry away heat produced in bearing Prevent metal-to-metal contact and reduce friction Prevent entry of foreign material ie. dust, dirt etc. in the bearing Provide a cushion to load and shocks None 767. Which one of the following is NOT the property of a good lubricant? No change in viscosity due to variation in temperature. Reduces friction between machine parts. Takes up the surface pressure between sliding parts. Becomes thicker after prolonged use. None 768. The most important quality of any lubricant is viscosity specific gravity specific heat emulsification None 769. Which one of the following is the best way for preparing an emulsion? Mix soluble oil and water by pouring both simultaneously Add water to the soluble oil Add soluble oil to the water None of the above None 770. Which one of the following is common method for applying cutting fluid on the tool point? With high pressure jet With a brush With an oil can Either 'b' or 'c' None 771. While machining cast iron, the coolant used should be dry air kerosene machine oil soft water None 772. When the applied loading is always in one direction, the type of thread preferred is Acme ( Square BSW Buttress None 773. Which type of thread is considered strong and frequently used for power transmission? ) BSW BSF Acme Buttress None 774. If it is required to bring the driven shaft to speed in a gradual manner, which type of device will be used? Coupling Clutch Gear Belt drive None 775. If, in a belt drive, the sense of rotation of both is the same, the drive used is open belt drive cross belt drive open or cross belt drive neither open not cross belt drive None 776. Which one of the following statements is NOT true about cross belt drive? Pulleys rotate in opposite directions Belt angle on both the pulleys is equal Belts wear very fast Used for transmission of speed at high power None 777. In belt drive, pulleys are made a slightly convex surface (rather than flat). This convex surface is called hump ) peak crown spot None 778. Which one of the following statements is NOT true about timing belts? ( They make too much noise They are toothed belts. There is no slippage The driving and driven shafts remain synchronized. None 779. . Which one of the following belt materials can withstand acidic and wet conditions? Leather Balata Cotton Rubber None 780. In a belt drive, the outer surface of the pulley is made in convex form. Which one of the following statements is NOT true about this convex surface? It is called crown. It keeps the belt in the centre when it is in movement. It causes excessive belt wear. It prevents the belt from slipping from the edge of the pully None 781. Fast and loose pulley drive configuration is used when distance between driving and drive shaft is too large velocity ratio is too large it is required to start or stop driven shaft without disturbing driving shaft low noise is required None 782. . An example of use of stepped pulley drive is in lathe milling machine shaper planer None 783. Which one of the following statements is NOT true about coupling? It connects two in-line shafts. It can be rigid or flexible It drives driving and driven shafts at same speed. It can engage and disengage driving and driven shafts as a normal operation None 784. It is a long cylindrical coupling bored and keyed to fit over both shafts. It is called rigid coupling muff coupling spider coupling fluid coupling None 785. Which one of the following types of couplings gives a soft start? Rigid coupling Muff coupling Spider coupling Fluid coupling None 786. A coupling which has a yoke on each shaft is called universal coupling muff coupling rigid coupling spider coupling None 787. Which type of coupling is used in the propeller shaft of a vehicle? Spider coupling Universal coupling Rigid coupling None 788. When the situation is such that power has to be transmitted at an angle, the gears used are spur gears helical gears bevel gears herringbone gears None 789. gears Herringbone gears resemble two that have been placed side by side. spur bevel helical face None 790. The sun and planet gearing used in differentials is of the type worm and worm wheel rack and pinion hypoid hypoid None 791. With worm-and-gear sets very high gear ratio can be obtained. It can be as high as 10:1 50:1 100:1 500:1 None 792. .... gears resemble spiral bevel gears except that the shaft axes do not intersect. Hypoid Worm Epicyclic Face None 1 out of 80 Time's upTime is Up!
