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Information and Communication Technology System Maintenance (ICTSM)
SPECIAL SEMI CONDUCTORS AND POWER SUPPLY
Set 4
Set 4
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Q7713
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Which is two terminal device?
A
TRIAC
B
DIAC
C
SCR
D
UJT
Q7714
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What is the operating frequency of linear power supply?
A
20 Hz to 25 Hz
B
50 Hz to 60 Hz
C
5 kHz to 10 kHz
D
15 kHz to 1 MHz
Q7715
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What is the efficiency of linear power supply?
A
30% - 40%
B
40% - 50%
C
50% - 60%
D
60% - 75%
Q7716
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Which circuit is used in SMPS for voltage regulation?
A
Clipping
B
Clamping
C
Switching
D
Amplification
Q7717
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What is the full form of the abbreviation CVT?
A
Complex Virtual Technology
B
Constant Voltage Transformer
C
Composite Video Transmission
D
Complementary Voltage Terminal
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