electrical engineering MCQs – Page 274

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 Review each marked answer and report any item that may be outdated or unclear.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

5461. The hfe parameter is called ______________in CE arrangement with output shorted?
0

A. Input impedance

B. Voltage gain

C. Current gain

D. None of the above

5462. If the operating point changes, the h parameters of transistor_____________?
0

A. Do not change

B. None of the above

C. May or may not change

D. Also change

5463. The dimensions of hie parameter are _______________?
0

A. Farad

B. None of the above

C. Mho

D. Ohm

5464. A transistor behaves as a linear device for _____________?
0

A. Small signals only

B. Large signals only

C. Both small and large signals

D. None of the above

5465. Hybrid means_____________?
0

A. Unique

B. Mixed

C. Single

D. None of the above

5466. The parameter hie stands for input impedance in _____________?
0

A. CC arrangement with output shorted

B. None of the above

C. CE arrangement with output shorted

D. CB arrangement with output shorted

5467. In CE arrangement, the value of input impedance is approximately equal to ______________?
0

A. Hre

B. Hie

C. Hoe

D. None of the above

5468. In order to determine hfe and hie parameters of a transistor, __________ is an a.c. short-circuited?
0

A. Input

B. Input as well as output

C. Output

D. None of the above

5469. The values of h parameter of a transistor in CE arrangement are ____________ arrangement?
0

A. Different from that in CB

B. None of the above

C. The same as for CB

D. The same as for CC

5470. The h parameter approach gives correct results for_______________?
0

A. Large signals only

B. Small signals only

C. Both small and large signals

D. None of the above

5471. There are ______________ h parameters of a transistor?
0

A. Two

B. Three

C. Four

D. None of the above

5472. NAND gates are preferred over others because these__________________?
0

A. have lower fabrication area

B. consume least electronic power

C. can be used to make any gate

D. provide maximum density in a chip

5473. Which type of CPLD packaging can provide maximum number of pins on the package due to small size of the pins ?
0

A. BGA

B. PGA

C. QFP

D. PLCC

5474. The only function of NOT gate is to__________________?
0

A. Stop signal

B. Invert input signal

C. None of the above

D. Act as a universal gate

5475. In which of the following base systems is 123 not a valid number ?
0

A. Base 16

B. Base 10

C. Base 3

D. Base8

5476. (1(10101)2 is_______________?
0

A. ( 69)10

B. (37)10

C. (41 )10

D. (5)10

5477. When an input signal 1 is applied to a NOT gate, the output is ______________?
0

A. Either 0 & 1

B. 0

C. None of the above

D. 1

5478. The universal gate is ________________?
0

A. NAND gate

B. OR gate

C. AND gate

D. None of the above

5479. A debouncing circuit is________________?
0

A. an astable MV

B. a bistable MV

C. a latch

D. a monostable MV

5480. An AND gate will function as OR if________________?
0

A. all the inputs to the gates are 1

B. all the inputs are 0

C. all the inputs and outputs are complemented

D. either of the inputs is 1

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