Multiple Choice
The main function of a fuse is to
A) protect the line
B) open the circuit
C) protect the appliance
D) prevent excessive currents
Correct Answer:
Verified
Correct Answer:
Verified
Q3: Large internal faults are protected by<br>A)merz price
Q4: SF6 gas<br>A)is yellow in colour<br>B)is lighter than
Q5: In order that current should flow without
Q6: Directional relays are based on flow of<br>A)power<br>B)current<br>C)voltage
Q7: D.C. shunt relays are made of<br>A)few turns
Q9: The current zero interruption, in oil and
Q10: Air blast circuit breaker is used for<br>A)over
Q11: Circuit breakers are essentially<br>A)current carrying contacts called
Q12: Fault diverters are basically<br>A)fuses<br>B)relays<br>C)fast switches<br>D)circuit breakers
Q13: The relay operating speed depends upon<br>A)the spring