Multiple Choice
In order that current should flow without causing excessive heating or voltage drop, the relay contacts should
A) have low contact resistance
B) be clean and smooth
C) be of sufficient size and proper shape
D) have all above properties
Correct Answer:
Verified
Correct Answer:
Verified
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Q8: Thermal overload relays are used to protect
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Q10: Magnetic circuit breaker has _ trip action.<br>A)delayed<br>B)instantaneous<br>C)both
Q11: An efficient and a well designed protective
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
Q17: With which of the following, a circuit