electrical engineering MCQs – Page 344

Practise multiple-choice questions from electrical engineering for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

electrical engineering Mcqs
1. economics of power generation2. analog electronics3. solid state switching circuits4. parallel circuits5. switchgear and protection6. op amp circuits7. transistor audio power amplifiers8. electrostatics9. heating and welding10. multi stage transistor amplifiers11. passive filters12. network theorems13. regulated d c power supply14. a c fundamentals circuits and circuit theory15. electromagnetic induction16. power electronics17. magnetism and electromagnetism18. transformers19. modulation and demodulation20. d c generators21. semiconductor theory22. single phase induction motors23. semiconductor diode24. hybrid parameters25. digital electronics26. oscillators27. earthing or grounding28. single stage transistor amplifiers29. d c motors30. transistor biasing31. amplifiers with negative feedback32. basic electrical33. electronic instruments34. synchronous motors35. field effect transistors fet36. magnetic circuit37. control systems38. industrial drives39. power generation40. series parallel circuits41. transistor tuned amplifiers42. electrical engineering materials43. rectifiers and converters44. integrated circuits45. scr silicon controlled rectifiers46. cables47. polyphase induction motors48. measurement and instrumentation49. transistors50. electrical machine design51. electrolysis and storage of batteries52. electric traction53. transmission and distribution
6861. Resistances can be measured with the help of_______________?
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A. wattmeters

B. ammeters

C. ohmmeters and resistance bridges

D. voltmeters

E. all of the above

6862. The electrical power to a meggar is provided by________________?
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A. any of the above

B. permanent magnet D.C. generator

C. AC. generator

D. battery

6863. A universal RLC bridge uses_________________?
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A. Maxwell bridge configuration for measurement of inductance and De Santas bridge for measurement of capacitance

B. Any of the above

C. Maxwell Wein bridge for measurement of inductance and modified De Santys bridge for measurement of capacitance

D. Maxwell Wein bridge for measurement of inductance and Wein bridge for measurement of capacitance

6864. A dynamometer wattmeter can be used for______________?
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A. both D.C. and A.C.

B. D.C. only

C. A.C. only

D. any of the above

6865. To measure a resistance with the help of a potentiometer it is_________________?
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A. not necessary to standardise the potentiometer

B. necessary to use a volt ratio box in conjunction with the potentiometer

C. necessary to standardise the potentiometer

D. none of the above

6866. In Weston synchronoscope the moving coil is connected across______________?
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A. any of the above

B. fixed coils

C. bus-bars

D. incoming alternator

6867. In a vibrating reed frequency meter the natural frequencies of two adjacent reeds have a difference of_________________?
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A. 0.5 Hz

B. 0.1 Hz

C. 1.5 Hz

D. 0.25 Hz

6868. If an inductance is connected in one arm of bridge and resistances in the remaining three arms____________?
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A. the bridge can be balanced if the resistances have some specific values

B. the bridge cannot be balanced

C. the bridge can always be balanced

6869. In a low power factor wattmeter the compensating coil is connected_______________?
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A. in parallel with pressure coil

B. in series with current coil

C. in series with pressure coil

D. in parallel with current coil

6870. In a dynamometer 3-phase power factor meter, the planes of the two moving coils are at_____________?
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A. 120

B. 90

C. 60

D. 0

6871. In an energy meter braking torque is produced to________________?
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A. bring energy meter to stand still

B. safe guard it against creep

C. maintain steady speed and equal to driving torque

D. brake the instrument

6872. The adjustment of position of shading bands, in an energy meter is done to provide______________?
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A. braking torque

B. friction compensation

C. none of the above

D. creep compensation

6873. In a portable instrument, the controlling torque is provided by_____________?
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A. spring

B. all of the above

C. gravity

D. eddy currents

6874. Which of the following properties a damping oil must possess ?
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A. The viscosity of the oil should not change with the temperature

B. Should be non-evaporating

C. Must be a good insulator

D. Should not have corrosive action upon the metal of the vane

E. All of the above
6875. A __________ device prevents the oscillation of the moving system and enables the latter to reach its final position quickly___________?
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A. damping

B. any of the above

C. controlling

D. deflecting

6876. A sensitive galvanometer produces large deflection for a_______________?
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A. large value of current

B. none of the above

C. small value of current

D. large value of voltage

E. large value of power

6877. An induction meter can handle current up to_____________?
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A. 30 A

B. 10:00 AM

C. 100 A

D. 60 A

6878. For handling greater currents induction wattmeters are used in conjunction with______________?
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A. either of the above

B. potential transformers

C. power transformers

D. none of the above

E. current transformers
6879. In a meggar controlling torque is provided by______________?
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A. eddy current

B. coil

C. spring

D. gravity

6880. In a vibrating reed frequency meter the natural frequencies of two adjacent reeds have a difference of___________?
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A. 1.5 Hz

B. 0.25 Hz

C. 0.1 Hz

D. 0.5 Hz