Switchgear and Protection

A. burning
B. arcing
C. melting
D. none of the above

A. no ageing effect
B. high speed of operation
C. high rupturing capacity
D. all of the above

A. to operate the relay of circuit breaker
B. as a substitute for circuit breaker
C. always independent of the position of circuit breaker
D. generally on both sides of a circuit breaker

A. 20 A
B. 50 A
C. 100 A
D. 200 A

A. low currents circuits
B. low voltages circuits
C. high voltages and large currents circuits
D. all circuits

A. overload
B. short-circuit and overload
C. open circuit, short-circuit and overload
D. none of the above

A. Photoelectric effect
B. Electrostatic effect
C. Heating effect
D. Magnetic effect

A. current
B. voltage
C. VAR
D. kVA

A. transmission line
B. motor
C. generator
D. feeder

A. low melting point and high specific resistance
B. low melting point and -low specific resistance
C. high melting point and low specific resistance
D. low melting point and any specific resistance