electrical engineering MCQs – Page 316

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 Review each marked answer and report any item that may be outdated or unclear.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

6301. If the diversity factor of a power station is high then its generation cost is___________?
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A. high

B. low

C. remain same

D. depend on the plan type

6302. Which of the following device is used to measure vacuum?
0

A. Hygrometer

B. Barometer

C. U-tube manometer

D. Venturi metre

6303. Which of the following power plant has least fuel transportation______________?
0

A. diesel generating plants

B. nuclear power plants

C. steam power stations

D. thermal power plants

6304. Compounding of steam turbine is done for_______________?
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A. balancing the turbine

B. reducing the rotor speed

C. reducing the work done

D. increasing the rotor speed

6305. Demand factor is defined as___________?
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A. connected load/maximum demand.

B. average load/maximum load.

C. maximum demand/connected load

D. average load x maximum load

6306. Load curve is useful in deciding the__________?
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A. sizes of generating units

B. A. operating schedule of generating units

C. total installed capacity of the plant

D. all of the above

6307. Which of the following load is responsible for lower power factor of supply system__________?
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A. synchronous Motors

B. all of the above

C. induction motors

D. resistive loads

6308. Which of the following power plant usually offer highest maintenance cost___________?
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A. Hydro-electric power plants

B. Thermal power plants

C. Diesel engine power plant

D. Nuclear power plants

6309. In hydro power plant, the graph between discharge and time is known as___________?
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A. monograph.

B. discharge graph.

C. load graph.

D. hydro graph

6310. Which of the following power plant has highest Depreciation charges?
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A. All have same

B. Thermal plant

C. Diesel plant

D. Hydroelectric plant

6311. The value of the reheat factor is of the order of_____________?
0

A. 1.0 to 1.05

B. 0.8 to 1.0

C. above 1.5

D. 1.1 to 1.5

6312. In thermal power plant, heat from the flue gases is utilized in___________?
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A. chimney

B. super heater

C. economizer

D. condenser

6313. Which material is used to made a solar cell_______________?
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A. scandium

B. silicon

C. aluminum

D. Germanium

6314. A gas turbine basically work on
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A. Dual cycle

B. Rankin cycle

C. Brayton cycle

D. Carnot cycle

6315. One kilowatt hour is equal to_________?
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A. 735 k cal.

B. 860 k cal.

C. 746 k cal.

D. 532 k cal.

6316. The ideal load factor should be_____________?
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A. negative.

B. infinity.

C. zero

D. unity

6317. Diesel power plant are generally used as___________?
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A. base load plant

B. peak load plant

C. standby plant

D. none of the above

6318. The overall efficiency of a steam power station is ________ its thermal efficiency.
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A. none of the above

B. greater than

C. less than

D. equal to

6319. Which of the following power plant has least efficiency_________?
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A. Steam power plant

B. Hydro power plant

C. Diesel power plant

D. Nuclear power plant

6320. The fuel used in nuclear reactor is_____________?
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A. all of the above

B. cadmium

C. radium

D. uranium

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