dmBy pulak.univ / February 1, 2024 KHAMARGACHI PRIVATE ITI (PR19000230) CBT - INTERNAL EXAM - FEB'-MAR' 2023 Venue: IT-LAB AT KITI ELECTRICIAN - SECOND YEAR Total No. of Questions: 75 Questions Subject-Wise: Trade Theory-33, WS&C - 11, ED - 11 & Emp. Skills - 20 Note: Mandatory to attend all questions. No Negative Marks. Name: Phone: ITI Name Reg. No. 1. Trade Theory Which voltage drop is indicated in the portion marked as X Please select your answer Full load voltage drop Armature voltage drop Armature reaction drop Shunt field voltage drop 2. Trade Theory Which type of D.C Generator works in absence of residual magnetism? Please select your answer Shunt generator Series generator Compound generator Separately excited generator 3. Trade Theory What is the purpose of slot marked as ‘X’? Please select your answer To fix the key way To make air circulation For lubrication purpose For easy removal from shaft 4. Trade Theory Calculate the induced emf of 4 pole dynamo having 1000 rpm lap wound and total number of conductors is 600, the flux / pole is 0.064 wb? Please select your answer 160V 320v 480V 640V 5. Trade Theory Which instrument is used to measure armature winding resistance? Please select your answer Megger Multimeter Series type Ohm meter Kelvin bridge 6. Trade Theory What is the purpose of series resistor connected with holding coil in a D.C four point starter? Please select your answer Limit the current in holding coil Increase the current in holding coil Increase the voltage in holding coil Decrease the voltage in holding coil 7. Trade Theory Which insulating material belongs to class ‘B’ insulation? Please select your answer Cotton Bamboo Fiber glass Leatheroid paper 8. Trade Theory Which material is used for starting resistance of DC starters? Please select your answer Eureka Nichrome Manganin Constantine 9. Trade Theory Which type of armature winding is illustrated? Please select your answer Triplex wave winding Duplex wave winding Progressive lap winding Retrogressive lap winding 10. Trade Theory What is the electrical degree of 6 pole stator of motor? Please select your answer 360° 720° 1080° 1440° 11. Trade Theory Calculate the number of coils per phase per pair of poles of 3 phase motor having 2 pole, 24 slots,12 coils? Please select your answer 1 2 3 4 12. Trade Theory Calculate the percentage slip in a 3 phase induction motor having 6 poles with a frequency of 50 Hertz rotating with actual speed of 960 rpm? Please select your answer 2% 3% 4% 5% 13. Trade Theory What reduces the cross sectional area of core material for VA rating? Please select your answer Dynamo sheet Low alloy sheet High alloy sheet Normal steel sheet 14. Trade Theory Which type of A.C single phase motor is classified under commutator motor type? Please select your answer Stepper motor Repulsion motor Shaded pole motor Permanent capacitor motor 15. Trade Theory Which single phase motor tapped field speed control method is employed? Please select your answer Universal motor Shaded pole motor Capacitor start induction run motor Capacitor start capacitor run motor 16. Trade Theory Which type of single phase motor is used for hard disk drives? Please select your answer Stepper motor Repulsion motor Hysteresis motor Reluctance motor 17. Trade Theory Why the D.C generator should run in clockwise direction only? Please select your answer Protect brushes from damage Protect the residual magnetism Avoid short circuit in armature Avoid over loading of generator 18. Trade Theory How the base speed of D.C shunt motor can be increased by using D.C drive? Please select your answer By reducing the field current By increasing the field current By increasing the supply voltage By reducing the armature voltage 19. Trade Theory Why the A.C drives are mostly used in process plant? Please select your answer Easy to operate Robust in construction Very high starting torque Maintenance free long life 20. Trade Theory Calculate the speed of an alternator having 2 poles at a frequency of 50 Hz? Please select your answer 1500 rpm 2500 rpm 3000 rpm 6000 rpm 21. Trade Theory What is the type of A.C motor stator winding? Add description here! Please select your answer Single layer basket winding Double layer basket winding Involute coil winding Diamond coil winding 22. Trade Theory What is the name of the equipment that provides D.C to the rotor of alternator? Please select your answer Exciter Inverter Converter Synchroniser 23. Trade Theory What is the necessity of residual magnetism in a self excited DC generator? Please select your answer Build up the voltage Reduce the field current Reduce armature current Maintain constant output voltage 24. Trade Theory What is the purpose of the capacitor (C) in centrifugal switch speed control method of universal motor? Please select your answer Maintain constant speed Improve the power factor Protect from the over loading Reduce the sparks on the contacts 25. Trade Theory What is the speed of an alternator connected with a supply frequency of 50 Hz at rated voltage having 4 poles? Please select your answer 1000 rpm 1500 rpm 3000 rpm 4500 rpm 26. Trade Theory Calculate the pitch factor (KP) for a winding having 36 stator slots 4 pole with angle (α) is 30° in alternator? Please select your answer 0.942 0.965 0.978 0.985 27. Trade Theory What is the name of winding, if coil pitch is less than pole pitch? Please select your answer full pitch winding Half pitch winding Long corded winding Short corded winding 28. Trade Theory What is the cause for hunting effect in alternators? Please select your answer Due to over load Running without load Running with fluctuation of speed Due to continuous fluctuation in load 29. Trade Theory Why armature resistance of a D.C generator is very low? Please select your answer Reduce armature current Reduce armature voltage drop Run armature with less weight Reduce the temperature of armature 30. Trade Theory What is the type of alternator? Please select your answer Brushless alternator Three phase alternator Single phase alternator Salient pole type alternator 31. Trade Theory What is the supply frequency of an alternator having 6 poles runs at 1000 rpm? Please select your answer 25 Hz 40 Hz 50 Hz 60 Hz 32. Trade Theory What is the name of the part of alternator? Please select your answer Stator Exciter Salient pole rotor Smooth cylindrical rotor 33. Trade Theory What is the effect in increasing the field excitation current in alternator? Please select your answer Prevents demagnetizing Over voltage protection Dead short circuit protection Alternator will be over loaded 34. Employability Skills BCC in email means Please select your answer blind chair copy blind child copy blind chart copy blind carbon copy 35. Employability Skills When we attempt to convert a Word file into a pdf, we call it Please select your answer Jpg Doc Text Data Conversion 36. Employability Skills Kumar ---------- a good carpenter Please select your answer Are Can Be Is 37. Employability Skills The business idea should ----------------- Please select your answer Satisfy only my needs Solve someone’s problem Save the world None of the above 38. Employability Skills Microsoft word is an example of Please select your answer Operating System Processing Device System Software Application Software 39. Employability Skills For effective communication -----------------. Please select your answer Keep Listening. Keep Talking. Listen and talk carefully Listen carefully but talk unnecessarily 40. Employability Skills JPG means Please select your answer Junior Photography Group Joint Photographic Group Joint Photo Group Junior Photographic 41. Employability Skills When you meet the instructor inside or outside the ITI, it is – Please select your answer always formal always informal formal inside the ITI informal outside the ITI 42. Employability Skills A town is--------- than a village, but---------------- than a city. Please select your answer larger, smaller small, large smaller, larger smaller, large 43. Employability Skills A good --------------------------- helps to create a good first impression Please select your answer Family Friend self-introduction all of the above 44. Employability Skills Good listening skills make workers -----------------. Please select your answer Productive Irresponsible Crazy Inefficient 45. Employability Skills 15. There ------------- a coffee shop --------------------- the park Please select your answer are, next to is, next to is, next are, next 46. Employability Skills A quick self-introduction is called ---------------.. Please select your answer elevation pitch elevator tone elevator pitch elevation tone 47. Employability Skills Pressing Esc in PowerPoint can ----------------------. Please select your answer add a new slide start slide show end slide show create a new presentation 48. Employability Skills Which word is an adjective_____ Please select your answer Beautiful Park Wave dSea 49. Employability Skills Gesture "Quick tilt head" shows ....... Please select your answer Boredom Confidence Interest Insecurity 50. Employability Skills Wages are paid -----------------. Please select your answer Daily Monthly Quarterly Yearly 51. Employability Skills Writing a leave letter is part of -------------------------- communication Please select your answer formal workplace informal workplace non-verbal workplace none 52. Employability Skills Fix, measure, pull, lift, grind, mix, operate – are examples of Please select your answer Pronouns Action word Describing word Naming word 53. Employability Skills ISO stands for ----------------- Please select your answer International Organization for Standardization International Order for Standardization International Organizers for Standardization International Organization for Stabilization 54. Workshop Calculation & Science Which is the law of friction? Please select your answer Friction force is independent over the area and shape of contacting surfaces Frictional force is inversely proportional to the normal reaction Frictional force acts in the same direction of motion Frictional force is not a dependent on nature of contacting surface 55. Workshop Calculation & Science What is the direction of frictional force against a motional object? Please select your answer Inclined to the object Opposite to the object Parallel to the object Perpendicular to the object 56. Workshop Calculation & Science What kind of friction is called if two objects are in contact at rest? Please select your answer Sliding friction Rolling friction Static friction Angular friction 57. Workshop Calculation & Science How co-efficient of friction is expressed? Please select your answer It is expressed as the ratio of force and area It is the ratio between frictional force and normal reaction It is the ratio between normal reaction and the mass of the object It is expressed as the ratio of weight and normal reaction 58. Workshop Calculation & Science How much will be the weight of a body which will be moved by a horizontal force of 50 kg against a frictional resistance of 0.25? Please select your answer 150 kg 200 kg 250 kg 300 kg 59. Workshop Calculation & Science What is the area of the circle, whose diameter is 50 cm? Please select your answer 1900 cm² 1950 cm² 1962.5 cm² 1960 cm² 60. Workshop Calculation & Science What is the value of x, if 3 (2x - 4) = -4x + 28 ? Please select your answer 4 8 6 12 61. Workshop Calculation & Science What is the purpose of tempering a steel? Please select your answer To reduce the brittleness To remove the ductility To increase the hardness To increase the brittleness 62. Workshop Calculation & Science What is the selling price, if the profit is 5% for a computer table bought at Rs.1150/- with Rs.50/- as a transport charge? Please select your answer 1160 1620 1060 1260 63. Workshop Calculation & Science What is the compounded annual interest, for a loan amount of Rs.80000/- at 10% per annum for a period of 2 years? Please select your answer Rs.16800/- Rs.92400/- : Rs.96800/- Rs.94800/- 64. Workshop Calculation & Science What is the maturity amount if Rs.20000 is deposited at 5% compound interest per annum for 2 years? Please select your answer Rs.22000 Rs.22050 Rs.22500 Rs.25000 65. Engineering Drawing Read the below Electrical Signs or Symbols. Please select your answer Socket 2 pin, 3 pin Ceiling Rose 2-pin, 3-pin Two-way switch Lamp 66. Engineering Drawing Read the below Electrical Signs or Symbols. Please select your answer A.C. D.C. Single Phase A.C. 50 Hz Three Phase A.C. 50 Hz 67. Engineering Drawing Read the below electrical sign or symbol. Please select your answer Earthling Battery Cell Positive/ Negative 68. Engineering Drawing Read the below Electrical Signs or Symbols. Please select your answer UJR BJR SCR FET 69. Engineering Drawing Read the below Electrical Signs or Symbols. Please select your answer Auto transformer Choke Transformer Electromagnet 70. Engineering Drawing Read the below Electrical Signs or Symbols. Please select your answer Alternator Lamp Ammeter Regulator 71. Engineering Drawing Read the below Electrical Signs or Symbols. Please select your answer Buzzer Loud speaker Electric Bell Microphone 72. Engineering Drawing Read the below Electrical sign or symbol. Please select your answer Galvanometer Generator DC motor Alternator 73. Engineering Drawing Read the below electrical sign or symbol. Please select your answer Electric Bell chock Transformer electromagnet 74. Engineering Drawing Read the below Electrical Signs or Symbols. Please select your answer Earthing Capacitor Battery Cell 75. Engineering Drawing What is the name of part ‘X’ in given figure? Please select your answer Aluminum Copper Conductor Insulator 76. Which type of occupational health hazards involves “Toxic”? Physical Hazards Chemical Hazards Biological Hazards Mechanical Hazards None 77. Trade Theory Which fire extinguisher is used for flammable and running liquid fire? Please select your answer Foam extinguisher Halon extinguisher Dry powder extinguisher Carbon dioxide (CO2) extinguisher 78. Micrometer What is the least count of metric outside micrometer? 0.01 mm 0.10 mm 0.0001 mm 0.00001 mm None 1 out of 78 You have submitted your answers. 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