1) What is switchgear?
a. An apparatus used for switching, controlling and protecting the electrical circuits and equipments.
b. It detects the faults only.
c. It corrects the faults only.
d. All of the above.
ANSWER: All of the above.
2) What is the primary principle of a fuse?
a. Open the circuit.
b. Protect the appliance.
c. Protect the line.
d. Prevent excess current from flowing into the line
ANSWER: Prevent excess current from flowing into the line.
3) When does the circuit breaker operate in the line?
a. When power is to be supplied.
b. When the line is to be tested.
c. Whenever the fault occurs in the line.
d. Whenever the switch and the relay has to be operated.
ANSWER: Whenever the fault occurs in the line.
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