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Wireman
SUBSTATION AND EQUIPMENT
Set 1
Set 1
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Q14174
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Which is a circuit breaker?
A
Power factor improvement device
B
Protect from under voltage
C
Controlling device
D
Protect from over voltage
Q14175
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Which is the full form of VCB?
A
Variable circuit breaker
B
Voltage control breaker
C
Vacuum circuit breaker
D
Vacuum control breaker
Q14176
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Which condition circuit breaker operates?
A
Low current
B
Over current
C
Under voltage
D
Over voltage
Q14177
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Which material is used for insulating of outer body of vacuum circuit breaker?
A
Glass or ceramic
B
Iron
C
Stainless steel
D
Ebonite
Q14178
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Which circuit breaker is used in rural area?
A
OCB
B
SF6
C
vacuum circuit breaker
D
ACB
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