Multiple Choice
Which of the following is the least expensive protection for over current in lowvoltage system ?
A) Rewireable fuse
B) Isolator
C) Oil circuit breaker
D) Air break circuit breaker
Correct Answer:
Verified
Correct Answer:
Verified
Q1: The transient voltages that appears across the
Q3: Over voltage protection is recommended for<br>A)Hydro electric
Q4: For which of the following ratings of
Q5: The actuating quantity for the relays may
Q6: The short-circuit in any winding of the
Q7: SF6 gas<br>A)Is yellow in colour<br>B)Is lighter than
Q8: SF6 gas is transported in<br>A)Air cylinders<br>B)Gas cylinders<br>C)Liquid
Q9: Switching over voltage arc are more hazardous
Q10: Overfluxing protection is recommended for<br>A)Distribution transformer<br>B)Generator transformer
Q11: The operating speed of a relay depends