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With which of the following, a circuit breaker must be equipped for remote operation ?
None of these
inverse time trip
shunt trip
time-delay trip
None of these
inverse time trip
shunt trip
time-delay trip
Answer
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A fuse performs
both detection and interruption functions
detection function only
None of these
circuit interruption function only
both detection and interruption functions
detection function only
None of these
circuit interruption function only
Answer
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To protect most of the electrical equipment handling low power, the types of relays used are
None of these
Both of the listed here
Thermocouple
Electronic and bimetallic
None of these
Both of the listed here
Thermocouple
Electronic and bimetallic
Answer
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The transient voltage that appears across the contacts at the instant of arc extinction is called
peak voltage
recovery voltage
restriking voltage
supply voltage
peak voltage
recovery voltage
restriking voltage
supply voltage
Answer
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The fuse rating is expressed in terms of
voltage
current
kVA
VAR
voltage
current
kVA
VAR
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The time-current graph of a fuse
is a circle
has inverse characteristic
None of these
has a linear characteristic
is a circle
has inverse characteristic
None of these
has a linear characteristic
Answer
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