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A circuit breaker is a
None of these
current limiting device
circuit interrupting device
current controlling device
None of these
current limiting device
circuit interrupting device
current controlling device
Answer
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Related Question
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SF 6 gas
Is nontoxic
is yellow in colour
has pungent small
is lighter than air
Is nontoxic
is yellow in colour
has pungent small
is lighter than air
Answer
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A.C. network analyzer is used to solve problems of
Load flow
Load flow and short-circuit
Load flow, short-circuit and stability
Load flow and stability
Load flow
Load flow and short-circuit
Load flow, short-circuit and stability
Load flow and stability
Answer
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When transmission line is energized, the wave that propagates on it is
voltage wave only
power factor wave only
current wave only
both current wave and voltage wave
voltage wave only
power factor wave only
current wave only
both current wave and voltage wave
Answer
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The contacts of high voltage switches used in power system are submerged in oil. The main purpose of the oil is to
None of these
lubricate the contacts
insulate the contacts from switch body
All of these
extinguish the arc
None of these
lubricate the contacts
insulate the contacts from switch body
All of these
extinguish the arc
Answer
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Minimum arcing voltage will be least in case of
graphite
carbon
tungsten
silver
graphite
carbon
tungsten
silver
Answer
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