Switchgear Protections MCQ Questions & Answers | Electrical Engineering

A. inversely proportional to the current

B. inversely proportional to the square of the current

C. proportional to the current

D. proportional to square of the current

A. Zero

B. Unity

C. Infinity

D. None of the above

A. required to operate the circuit breaker

B. absorbed by the circuit of relay

C. developed by the relay circuit

D. none of the above

A. less than

B. same as

C. more than

D. proportional to

E. not directly related with

A. zero sequence currents only

B. positive sequence currents only

C. negative and zero sequence currents

D. zero, negative and positive sequence currents

A. motors

B. power outlet circuits

C. fluorescent lamps

D. light circuits

A. insulation being overstressed due to over voltages

B. insulation overstress may lead to failure and subsequent phase to phase faults

C. being inadequately protected against ground fault

D. all of the above

A. current

B. voltage

C. impedance

D. all of the above

A. Inductance

B. Capacitance

C. Resistance

D. Reactance

A. short transmission line

B. medium transmission line

C. long transmission line

D. medium and long transmission lines