Electrical Engineering · Question Bank

Faults

47 of 106 questions match · page 3 of 3. Answer in your head first, then check the solution.

📘 EE Mock Board Exam

#41📜 EE Pre-Board March 2018📘 PowerhouseEasy

MHO relay is used for

Arectifier

Bcircuit breaker

Ctransmission lines

Dfeeders

#42📜 EE Pre-Board March 2018📘 PowerhouseEasy

The per unit impedance of a circuit element is 0.30. If the base kV and base MVA are halved, then the new value of the per unit impedance of the circuit element will be

A0.3

B0.6

C0.003

D0.006

#43📜 EE Pre-Board March 2018📘 PowerhouseEasy

A relay is used to

Areceive a signal and record it

Bprotect a circuit

Cconnect a line to the source

Drelay a message to a remote place

#44📜 EE Pre-Board August 2018📘 PowerhouseEasy

If 25 ohms and 125 amperes are the base impedance and base current, respectively for a given system, what is the base KVA?

A781.25

B39.1

C390.625

D76.12

#45📜 EE Pre-Board August 2018📘 PowerhouseEasy

What is the equivalent IEEE device function number for directional power relay?

A21

B32

C37

D87

#46📜 EE Pre-Board August 2018📘 PowerhouseEasy

The purposes of insulating oil when used in power circuit breakers are the following EXCEPT

AInterrupter

BCoolant

CInsulation

DQuencher

#47📜 EE Pre-Board August 2018📘 PowerhouseEasy

The current from the neutral to the ground connection is 12 A. What is the zero sequence component in each phase?

A12 A

B36 A

C4 A

D3 A

More Electrical Engineering topics