Knowledge / Trivia tests -» Physics -» Energy / Electricity

Electrical Engineer Test Part-7

20 Questions - Developed by: Zeya - Developed on: 2019-03-09 - 2,161 taken

Electrical Engineer Test Part-7 (V-1.7) (Question: 121-140)

1

62. First line in transmission

C. B-phase
D. Neutral
B. R-phase
A. Ground

2

63. Circuit breaker is

None
B. Power factor detection device
A. Current interrupting device

3

64. Incandescent lamp operating at a power factor of

C. Unity
A. Leading
B. Lagging
D. Zero

4

65. The Incandescent Lamp will work normally with best efficiency if the power factor is

A. unity
D. Any power factor
B. 0.5 leading
C. 0.5 lagging

5

66. Terminal represents control input of BJT

B. Base
A. Emitter
C. Collector

6

67. Transducers convert physical quantity into

C. Motion
A. Electrical
B. Light
D. Mechanical

7

68. Sensor transducers will transfer.

None
B. Heat to mechanical signal.
A. Move to electrical signals

8

69. Sensor transducers (temperature, motion, etc ) will transfer to what type of signal

A. electrical signals
None
B. mechanical signal.

9

70. Common breakers used in distribution level

B. Oil type
A. Air circuit breaker ACB
C. Vacuum VCB

10

71. Difference between MOSFET and BJT

B. BJT is bigger in size and dimensions
A. MOSFET amplifies current
None

11

72. What is the DC gain of the transistor NPN?

B. Vout/Vin
A. IE/IC
C. IC/IB.

12

73. How the diode let pass the current?

A. Only in one way, it will block the other way
None
B. Both ways

13

74. Terminals of a transistor (BJT):

A. Base, collector & emitter
C. gate, emitter & drain
B. gate, collector & emitter

14

75. Differential Amplifier with High CMRRS means:

B. Amplify noise
C. High amplification gain
A. High rejection of noise

15

76. Op-amp (operational amplifier) input resistance:

B. Infinity
D. Same output resistance.
C. Relative resistance
A. Zero

16

77. Which of the following devices has a metal–semiconductor junction formed between a metal and a semiconductor:

D. tunnel diode
A. Schottky diode
C. varactor diode
B. Zener diode

17

78. CMOS inverter is superior to the R-pull up inverter due to:

B. Smaller propagation delay
A. High impedance
C. Symmetric transfer characteristics

18

79. Inverter allowed noise level question given the values of VOH = 3, VOL = 0.5, VIH = 1, VIL = 0.8. And need to get NMH and NML

A. 2, 0.3
C. 1, 0.3
B. 3, 0.1

19

80. To get rid of DC offset use?

A. Low pass filter
C. Band pass filter
D. Stop band pass filter
B. high pass filter

20

81. For forward biasing

C. Anode 7v cathode 10v
B. Anode 5v cathode 3v
A. Anode 3v cathode 7v

Comments (0)