Multiple Choice
An efficient and a well designed protective relaying should have
A) good selectivity and reliability
B) economy and simplicity
C) high speed and selectivity
D) all of the above
Correct Answer:
Verified
Correct Answer:
Verified
Q6: Thermal circuit breaker has<br>A)delayed trip action<br>B)instantaneous trip
Q7: A differential relay measures the vector difference
Q8: Thermal overload relays are used to protect
Q9: Fault diverters are basically<br>A)fuses<br>B)relays<br>C)fast switches<br>D)circuit breakers
Q10: Magnetic circuit breaker has _ trip action.<br>A)delayed<br>B)instantaneous<br>C)both
Q12: In order that current should flow without
Q13: SF6 gas<br>A)is yellow in colour<br>B)is lighter than
Q14: On which of the following routine tests
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