electrical engineering MCQs – Page 343

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 Review each marked answer and report any item that may be outdated or unclear.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
6841. The complete circle diagram of induetion motor can be drawn with the help of data found from__________?
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A. stator resistance test

B. noload test

C. all of the above

D. blocked rotor test

6842. Wattmeter cannot be designed on the principle of_________________?
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A. moving iron instrument

B. thermocouple instrument

C. electrostatic instrument

D. electrodynamic instrument

6843. A moving-coil permanent-magnet instrument can be used as ____________by using a low resistance shunt?
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A. voltmeter

B. ammeter

C. flux-meter

D. ballistic galvanometer

6844. The desirable static characteristics of a measuring system are______________?
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A. accuracy and reproducibility

B. accuracy, sensitivity and reproducibility

C. static error

D. drift and dead zone

6845. If an instrument has cramped scale for larger values, then it follows________________?
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A. none of the above

B. logarithmic law

C. square law

D. uniform law

6846. A multirangq instrument has________________?
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A. variable turns of coil

B. any of the above

C. multicoii arrangement

D. multiple shunt or series resistances inside the meter

E. multi range meters inside the measurement system

6847. Commonly used standard capacitor is______________?
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A. concentric cylindrical type

B. electrostatic type

C. multilayer parallel plate type

D. spherical type

6848. A phase shifting transformer is used in conjunction with_______________?
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A. Crompton potentiometer

B. D.C. potentiometer

C. A.C. co-ordinate potentiometer

D. Drysdale potentiometer
6849. A moving-coil permanent-magnet instrument can be used as flux-meter_____________?
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A. by eliminating the control springs

B. by making control springs of large moment of inertia

C. by using a low resistance shunt

D. by using a high series resistance

6850. The ratio of maximum displacement deviation to full scale deviation of the instrument is called_______________?
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A. linearity

B. dynamic deviation

C. static sensitivity

D. precision or accuracy

6851. Induction type single phase energy meters measure electric energy in_______________?
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A. Wh

B. kWh

C. kW

D. None of the above

E. VAR

6852. The pointer of an indicating instrument should be______________?
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A. either A. or B.

B. neither A. nor B.

C. very light

D. very heavy

6853. Which of the following is an essential part of a motor meter ?
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A. A braking device

B. An operating torque system

C. Revolution registering device

D. All of the above
6854. In majority of instruments damping is provided by______________?
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A. eddy currents

B. fluid friction

C. all of the above

D. spring

6855. A Weston synchronoscope is a________________?
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A. dynamometer instrument

B. moving iron instrument

C. none of the above

D. moving coil instrument

6856. The stator of phase shifting transformer for use in conjunction with an A.C. potentiometer usually has a _________________?
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A. three-phase winding

B. two-phase winding

C. single-phase winding

D. any of the above

6857. In an AC. co-ordinate potentiometer, the currents in the phase and quadrature potentiometer are adjusted to be_____________?
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A. out of phase by 30

B. out of phase by 90

C. out of phase by 180

D. out of phase by 0

E. out of phase by 60

6858. The use of _________ instruments is merely confined within laboratories as standardizing instruments?
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A. indicating

B. integrating

C. none of the above

D. absolute

E. recording

6859. Operating torques in analogue instruments are_______________?
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A. deflecting and damping

B. vibration and balancing

C. deflecting, control and damping

D. deflecting and control

6860. Instrument transformers are_______________?
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A. potential transformers

B. current transformers

C. both A. and B.

D. power transformers