MT- 3 ( ELEC-2nd YEAR)By 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 The speed of rotating magnetic field in an induction motor is called ……. effective speed slip speed shaft speed Synchronous speed None 2. Trade Theory After the starting winding of a single phase motor is disconnected, the motor can only- runs on the running winding runs on compensating winding runs on cage winding none of the above None 3. Trade Theory In a repulsion-start, induction-run motor all the commutator guments are …….. short circuited. By brushes by any short circuiting device by induction winding through equalizer connection None 4. Trade Theory The short-circuiting device in a repulsion start, induction-run motor is operated by …… circulating current magnetic attraction centrifugal force centripetal force None 5. Trade Theory After the repulsion motor starts, it runs like … split phase motor capacitor-start motor repulsion motor compound motor None 6. Trade Theory The act of reversing the electrical connections to reverse the direction of a motor running at full speed is called ……. plugging breaking brush shifting slugging None 7. Trade Theory Cross-connecting the commutator bars in repulsion motors reduces the circulating currents due to …… unequal air gap between stator and armature Shorted Brush short-circuiting device Shorted Stator Winding None 8. Trade Theory Centripetal short circuiting process is used only in case of ……. repulsion motors repulsion induction motors smooth phase motors repulsion start, induction-run motors None 9. Trade Theory High impedance is produced when ac supply is applied to the feed of a dc shunt motor. Reasons for this are- high resistance of the winding Indutive Reactance of the winding high voltage induced in the windings Capacitive reactance of winding None 10. Trade Theory Motor to improve power factor of AC series motor- Laminated iron is used in the frame high resistance winding is used in the frame happy shifting yoke is fixed in the frame more field turns are placed than dc field. None 11. Trade Theory To reduce armature reaction in universal motor- the trusses are shifted the number of armature coils is increased Equalizer connections are used compensating winding is connected in series with the armature None 12. Trade Theory At zero load, the speed of the Universal Moar tries to run away infinitely. its speed can be limited by supply frequency by the number of field poles by air and friction by commutation None 13. Trade Theory The recommended bushing pressure in a universal motor is 1.0 to 1.5 psi 0.5 to 1.0 psi 1.5 to 2.5 psi 2.5 to 3.5 psi None 14. Trade Theory The most common mechanical method of reducing the speed of a universal motor is brakes gearing chain belt None 15. Trade Theory The reason for the early destruction of the insulation of the winding is- less pressure of the brush dust, oil etc. more mica in the commutator ALL OF THE ABOVE None 16. Trade Theory Shaded Pole Motor Rotating Magnetic Field…. is generated by …. Salient Pole Shedding coil capacitor winding of high inductance None 17. Trade Theory There are three main types of single phase synchronous motor- Hysteresis, reluctance, repulsion hysteresis, reluctance, inductor reluctance, repulsion, shaded pole Inductor, Repulsion, Shaded pole None 18. Trade Theory The speed of an inductor motor depends on the line frequency and ………. stator poles Number of teeth in the rotor rotor slip Shaded pole position None 19. Trade Theory The capacitance of the capacitor used with the starting winding of a ceiling fan is generally … 32 F 16 µF 2 µF 4 µF None 20. Employability Skills What should be avoided during an interview? Greet the employer with a smile Maintain eye contact look somewhere and answer answer clearly and loudly None 21. Employability Skills The process of learning a completely new skill is called…… Semi skilled Reskilling Skilled worker Upskilling None 22. Employability Skills Anitha started an Instagram page for her craft business. She used ____________marketing strategy online marketing taglines poster networking None 23. Employability Skills What should you avoid doing during a group discussion? maintain eye contact while speaking speak clearly and sensibly listen to others carelessly allow others to speak None 24. Employability Skills When you send your resume through email, you are sending it in the form of _____ drive attachment marked text cookie advertisement None 25. Employability Skills The _______ serves as an interface between the computer and the user. Monitor Operating System Output Device Hardware None 26. Employability Skills Operating systems have a special language called ________ . Binary Language Access Code Linux Code Reboot Code None 27. Employability Skills ______ is the deafult extension of MS word files. .dc .dec .docx .msdoc None 28. Employability Skills In MS word to close the document which shortcut combination is used? Ctrl + B Shift + F4 Alt + F4 Ctrl + L None 29. Employability Skills MSMEs - encourages ___________________ entrepreneurship, employment and livelihood opportunities Population in the country School education None of the above None 30. Employability Skills As organizations grow, they need to ________ Become satisfied with the existing technologies the existing technologies Stay updated with changing technologies Use manually operated technology None of the above None 31. Employability Skills Work becomes more efficient with _______ Population growth Expansion of trade unions Teamwork and collaboration Becoming a developed country None 32. Employability Skills Which of these is not online marketing? Facebook Post Business Website Instagram Story 30% discount on your first store visit None 33. Employability Skills A ________ describes what a company desires to achieve in the long-run. Ethical practice Marketing strategy Business strategy vision statemen None 34. Employability Skills The types of pollutants are Solid Liquid ( Gas All of these None 35. Employability Skills Which one is NOT a career site to find job? Linked in .com timesjob.com babajob.com shadi.com None 36. Employability Skills An employee comes late to the office every day. He is not -- -------------- silent punctual confident clean None 37. Employability Skills Which of the following is not an internet term? Bowser Link Printer servo engine None 38. What is meant by software in the context of computers? Floppy disk computer program Computer circuitry Human brain None 39. Workshop Calculation & Science Which direction of motion frictional force acts equal inclined opposite forward None 40. Workshop Calculation & Science Which is necessary to avoid production of heat sand coolant lubricant salt None 41. Workshop Calculation & Science Centre of gravity is usually located where more weight is concentrated less weight is concentrated less mass is concentrated more mass is concentrated None 42. Workshop Calculation & Science Point where whole weight of body acts vertically is called. centre of mass mid point centre of gravity none of above None 43. Workshop Calculation & Science What is the heating method for induction hardening? Temperature controlled furnace Electric induction coil heat By use of Oxy-Acetylene torches By Ammonia gas None 44. Workshop Calculation & Science What is the purpose of Nitriding process partial whole case surface None 45. Engineering Drawing Read the below Electrical Signs or Symbols A.C D.C Single Phase A.C. 50 Hz Three Phase A.C., 50 Hz None 46. Engineering Drawing Read the below Electrical Signs or Symbols. Earthing Battery Cell Positive / Negative None 47. Engineering Drawing Read the below Electrical Signs or Symbols Galvanometer Generator DC motor Alternetor None 48. Read the below Electrical Signs or Symbols Earting Capacitor Cell Battery None 49. Engineering Drawing Read the below Electrical Signs or Symbols Socket 2 pin, 3 pin Ceiling Rose 2-pin, 3-pin Two-way switch Lamp None 50. Engineering Drawing Read the below Electrical Signs or Symbols. Alternator Lamp Ammeter Regulator None 51. Trade Theory Which one of the following forms the aggregate in a series circuit? Source voltage to current times The total voltage applied to the circuit Currerit flowing through a switch The average of the wattage consumed by each resistor None 52. Trade Theory If both the length and the cross-section of a wire of resistance R are doubled, then its resistance will be? 0.5 R R 2R 4R None 53. Trade Theory Which of the following is one of the functions performed by a diode? filter amplifier Rectifier Inverter None 54. Trade Theory What is the resistance of 200 W, 200 V lamp? 100 Ohm 200 Ohm 400 Ohms 800 Ohm None 55. Trade Theory The size of continuous earth wire used with cables in domestic installation should not be less than 14SWG installation half of the driver size Both (a) and (b) None of these None 56. Trade Theory What type of measurement will the multimeter indicate when using a standard multimeter to measure AC voltage? Peak to Peak Peak Average RMS None 57. Trade Theory The use of a multimeter.......... is done to measure. resistance Section voltage All of the above None 58. Trade Theory What will be the current flow in a capacitive circuit when the DC voltage across the capacitor is approximately equal to the source voltage? Current flow will be optimum A little current flows. The current will be maximum at the flow source The current flowing through the capacitor will be maximum None 59. Trade Theory There is a way to destroy a diode. Exceeding current limit in forward direction applying a small voltage in the reverse direction Dip it in water Dropping on the floor None 60. Trade Theory Single core cables are generally called .......... Not provided with armouring. Avoid excessive damage to armor making cables more flexible To make cables more hygroscopic None of these None 61. Trade Theory What will be the voltage applied to a circuit in which 0.5 A is flowing and 10 W is being produced? 2 volts 5 V 20 V 50 v None 62. 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