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Distance relays are generally
split-phase relays
impedance relays
reactance relays
none of these
split-phase relays
impedance relays
reactance relays
none of these
Answer
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An isolator is designed to open a circuit under
full load
normal conditions
None of these
no load
full load
normal conditions
None of these
no load
Answer
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A _______ is used to measure the stator % winding temperature of the generator.
pyrometer
resistance thermometer
thermometer
thermocouple
pyrometer
resistance thermometer
thermometer
thermocouple
Answer
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The time of closing the cycle, in modern circuit breakers is
0.01 sec
0.10 sec
0.003 sec
0.001 sec
0.01 sec
0.10 sec
0.003 sec
0.001 sec
Answer
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The fuse rating is expressed in terms of
VAR
voltage
kVA
current
VAR
voltage
kVA
current
Answer
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The time-current graph of a fuse
has inverse characteristic
None of these
has a linear characteristic
is a circle
has inverse characteristic
None of these
has a linear characteristic
is a circle
Answer
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