Multiple Choice
In a circuit breaker the contact space is ionised by what?
A) Field emission from the contact surface.
B) Thermal emission from the contact surface.
C) Thermal ionisation of gas.
D) All of above.
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q12: When does the circuit breaker operate in
Q13: Plug setting of a electromagnetic relay can
Q14: What is the relation between the fusing
Q15: What is the making capacity of the
Q16: What is / are the main disadvantage
Q18: What should be the value of fusing
Q19: Which circuit breaker is preferred to be
Q20: A three phase, 33 kV oil circuit
Q21: Which material is used for the manufacture
Q22: What is the cut off current in