electrical engineering MCQs – Page 346

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 Review each marked answer and report any item that may be outdated or unclear.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 generation 2. analog electronics 3. solid state switching circuits 4. parallel circuits 5. switchgear and protection 6. op amp circuits 7. transistor audio power amplifiers 8. electrostatics 9. heating and welding 10. multi stage transistor amplifiers 11. passive filters 12. network theorems 13. regulated d c power supply 14. a c fundamentals circuits and circuit theory 15. electromagnetic induction 16. power electronics 17. magnetism and electromagnetism 18. transformers 19. modulation and demodulation 20. d c generators 21. semiconductor theory 22. single phase induction motors 23. semiconductor diode 24. hybrid parameters 25. digital electronics 26. oscillators 27. earthing or grounding 28. single stage transistor amplifiers 29. d c motors 30. transistor biasing 31. amplifiers with negative feedback 32. basic electrical 33. electronic instruments 34. synchronous motors 35. field effect transistors fet 36. magnetic circuit 37. control systems 38. industrial drives 39. power generation 40. series parallel circuits 41. transistor tuned amplifiers 42. electrical engineering materials 43. rectifiers and converters 44. integrated circuits 45. scr silicon controlled rectifiers 46. cables 47. polyphase induction motors 48. measurement and instrumentation 49. transistors 50. electrical machine design 51. electrolysis and storage of batteries 52. electric traction 53. transmission and distribution

6901. Most sensitive galvanometer is_____________?
0

A. vibration galvanometer

B. Duddlb galvanometer

C. elastic galvanometer

D. spot ballistic galvanometer

6902. A Weston frequency meter is_____________?
0

A. moving iron instrument

B. dynamometer instrument

C. moving coil instrument

D. none of the above

6903. In an Anderson bridge, the unknown inductance is measured in terms of_______________?
0

A. known capacitance and resistance

B. known inductance and resistance

C. known resistance

D. known inductance

6904. An instrument transformer is used to extend the range of______________?
0

A. electrostatic instrument

B. induction instrument

C. moving coil instrument

D. any of the above

6905. The resistance in the circuit of the moving coil of a dynamometer wattmeter should be_____________?
0

A. high

B. almost zero

C. low

D. none of the above

6906. The principle on which vector voltmeter is based is_____________?
0

A. that it measures the amplitude of a single at two points and at the same time measures their phase difference

B. that it measures the response of linear ramp voltage

C. same as digital meter

D. that it works on the principle of complex variation

6907. The scale of a rectifier instrument is_________________?
0

A. neither A. nor B.

B. either A. or B.

C. non-linear

D. linear

6908. In a 3-phase power measurement by two wattmeter method the reading of one of the wattmeter was zero. The power factor of the load must be_______________?
0

A. zero

B. 0.3

C. 0.5

D. unity

6909. The disc of an instrument using eddy current damping should be of________________?
0

A. non-conducting and magnetic material

B. none of the above

C. conducting and non-magnetic material

D. conducting and magnetic material

6910. In a Weston synchronoscope, the fixed coils are connected across_______________?
0

A. none of the above

B. incoming alternator

C. a lamp

D. bus-bars

6911. Which of the following essential features is possessed by an indicating instrument ?
0

A. Deflecting device

B. All of the above

C. Damping device

D. Controlling device

6912. An induction wattmeter can be used for_________________?
0

A. both D.C. and A.C.

B. D.C. only

C. A.C. only

D. any of the above

6913. For measurement of mutual inductance we can use________________?
0

A. Heaviside bridge

B. Any of the above

C. Anderson bridge

D. Maxwells bridge

6914. An ohmmeter is a____________?
0

A. moving coil instrument

B. dynamometer instrument

C. none of the above

D. moving iron instrument

6915. In a Weston frequency meter, the magnetic axes of the two fixed coils are__________________?
0

A. inclined at 60

B. perpendicular

C. parallel

D. inclined at 120

6916. The power of a n-phase circuit can be measured by using a minimum of_______________?
0

A. (n + 1) wattmeter elements

B. (n 1) wattmeter elements

C. n wattmeter elements

D. 2n wattmeter elements

6917. A direct current can be measured by________________?
0

A. a D.C. potentiometer directly

B. none of the above

C. a D.C. potentiometer in conjunction with a volt ratio box

D. a D.C. potentiometer in conjunction with a standard resistance

6918. The household energy meter is_______________?
0

A. an indicating instrument

B. an integrating instrument

C. none of the above

D. a recording instrument

6919. An ammeter is a______________?
0

A. recording instrument

B. integrating instrument

C. secondary instrument

D. absolute instrument

6920. Most common form of A.C. meters met with in every day domestic and industrial installations are______________?
0

A. induction type single phase energy meters

B. mercury motor meters

C. all of the above

D. commutator motor meters

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