Multiple Choice
The relay operating speed depends upon
A) the spring tension
B) the rate of flux built up
C) armature core air gap
D) all of the above
Correct Answer:
Verified
Correct Answer:
Verified
Q15: Overload relays are of…… type.<br>A)induction<br>B)solid state<br>C)thermal<br>D)all above
Q16: Which of the following medium is employed
Q17: With which of the following, a circuit
Q18: A thermal protection switch can protect against<br>A)short-circuit<br>B)temperature<br>C)overload<br>D)over
Q19: Relays can be designed to respond to
Q21: D.C. shunt relays are made of<br>A)few turns
Q22: Directional relays are based on flow of<br>A)power<br>B)current<br>C)voltage
Q23: The main function of a fuse is
Q24: Circuit breakers are essentially<br>A)current carrying contacts called
Q25: Burden of a protective relay is the