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In a circuit breaker the time duration from the instant of the fault to extinction of arc is known as
lag time
operation time
clearing time
lead time
lag time
operation time
clearing time
lead time
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Related Question
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When transmission line is energized, the wave that propagates on it is
current wave only
both current wave and voltage wave
power factor wave only
voltage wave only
current wave only
both current wave and voltage wave
power factor wave only
voltage wave only
Answer
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The fuse wire, in D.C. circuits, is inserted in
positive circuit only
none of the listed here
Both of the listed here
negative circuit only
positive circuit only
none of the listed here
Both of the listed here
negative circuit only
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The fusing factor is
always 1
always less than 1
None of these
always more than 1
always 1
always less than 1
None of these
always more than 1
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If the fault occurs near the impedance relay, the V/ I ratio will be
higher than that of if fault occurs away from the relay
constant for all distances
Lower than that of if fault occurs away from the relay
None of these
higher than that of if fault occurs away from the relay
constant for all distances
Lower than that of if fault occurs away from the relay
None of these
Answer
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The fault that imposes severest duty on the circuit breaker is
line to ground fault
line to line fault
all three lines short-circuited
two lines to ground fault
line to ground fault
line to line fault
all three lines short-circuited
two lines to ground fault
Answer
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