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Total questions: 10
Worksheet time: 6mins
Circuit protection devices are used for which of the following purposes?
To protect people
To protect circuits
To guard against hazardous conditions
All of the above
Which of the following two are circuit protection devices?
Electrical plugs and CO2 cartridges
CO2 cartridges and circuit breakers
Fuses and circuit breakers
Fuses and electrical plugs
The component which provides a signal to circuit breaker under the fault condition:
Isolator
Fuse
Relay
CT
The basic purpose of a relay is to:
Detect the fault
Remove the fault
Trip the circuit
All of these
The figure shows ……………...
timer
contractor
BUSH BUTTON
MCCB
The figure shows ……………...
timer
Indicator lamp
selector switch
MCCB
The figure shows ……………...
timer
Circuit breaker ( MCB )
selector switch
Float switch
The figure shows ……………...
timer
Indicator lamp
selector switch
Float switch
