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________ relay is preferred for phase fault on short transmission line.
Impedance
Induction type
Reactance
None of these
Impedance
Induction type
Reactance
None of these
Answer
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The fuse wire, in DC circuit, is inserted in
None of these
Both positive and negative circuit
positive circuit only
negative circuit only
None of these
Both positive and negative circuit
positive circuit only
negative circuit only
Answer
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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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The fuse rating is expressed in terms of
kVA
voltage
current
VAR
kVA
voltage
current
VAR
Answer
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An isolator is designed to open a circuit under
full load
no load
normal conditions
None of these
full load
no load
normal conditions
None of these
Answer
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An isolator is installed
generally on both sides of a circuit breaker
always independent of the position of circuit breaker
to operate the relay of circuit breaker
as a substitute for circuit breaker
generally on both sides of a circuit breaker
always independent of the position of circuit breaker
to operate the relay of circuit breaker
as a substitute for circuit breaker
Answer
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