Electrical Engineering · Question Bank

Faults

13 of 106 questions match. Answer in your head first, then check the solution.

📘 EE Mock Board Exam
TypeAll 47Problem solving 34Objective 13
DifficultyAll 13Easy 13MediumHard
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#1📜 EE Pre-Board August 2012📘 PowerhouseEasy
This is the least prevalent shunt fault among transmission and distribution lines.
ALG
BLL
CLLG
DLLL
#2📜 EE Pre-Board August 2014📘 PowerhouseEasy
In which type of faults given below all the 3 components \(I_{a0}\) , \(I_{a1}\) and \(I_{a2}\) are equal?
ASingle line to ground fault
BLine to line fault
CDouble line to ground fault
DThree phase fault
#3📜 EE Pre-Board March 2015📘 PowerhouseEasy
Fault level means
AVoltage at the point fault
BFault current
CFault power factor
DFault MVA
#4📜 EE Pre-Board March 2015📘 PowerhouseEasy
There is no zero sequence component of the fault current for
ALine to line fault
BSingle line to ground fault
CSymmetrical fault
DDouble line to ground fault
#5📜 EE Pre-Board August 2015📘 PowerhouseEasy
Fault level means
AVoltage at the point of fault
BFault current
CFault power factor
DFault MVA
#6📜 EE Pre-Board March 2016📘 PowerhouseEasy
In a circuit breaker, the time duration from the instant of the fault to the extinction of the arc is known as
AOperating time
Btotal clearing time
CLag time
Dlead time
#7📜 EE Pre-Board March 2016📘 PowerhouseEasy
What is the device function number for overcurrent relay?
A27
B67
C50
D51
#8📜 EE Pre-Board March 2016📘 PowerhouseEasy
A balance delta connected load draws 100 A line current form a balanced 3- phase supply. Determine the zero sequence components of the currents.
A−50 − j86.6
B50 − j86.6
C86.6 − j50
D0
#9📜 EE Pre-Board March 2017📘 PowerhouseEasy
What is the IEEE device function number 50?
AAC time overcurrent relay
Binstantaneous overcurrent relay
CAC circuit breaker
DDifferential protective relay
#10📜 EE Pre-Board March 2018📘 PowerhouseEasy
MHO relay is used for
Arectifier
Bcircuit breaker
Ctransmission lines
Dfeeders
#11📜 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
#12📜 EE Pre-Board August 2018📘 PowerhouseEasy
What is the equivalent IEEE device function number for directional power relay?
A21
B32
C37
D87
#13📜 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

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