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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
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