Explore topic-wise MCQs in Electrical Engineering Mcqs.

This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering Mcqs knowledge and support exam preparation. Choose a topic below to get started.

1.

For which of the following equipment current rating is not necessary?

A. Circuit breakers
B. Isolators
C. Load break switch
D. Circuit breakers and load break switches
Answer» C. Load break switch
Discussion
2.

By which of the following methods string efficiency can be improved?

A. Using a guard ring
B. Grading the insulator
C. Using long cross arm
D. Any of the above
Answer» E.
Discussion
3.

Which of the following bus-bar schemes has the lowest cost?

A. Ring bus-bar scheme
B. Single bus-bar scheme
C. Breaker and a half scheme
D. Main and transfer scheme
Answer» C. Breaker and a half scheme
Discussion
4.

Which of the following relays is used on long transmission lines?

A. Impedance relay
B. Mho s relay
C. Reactance relay
D. None of the above
Answer» C. Reactance relay
Discussion
5.

Which of the following distribution systems is more reliable?

A. Radial system
B. Tree system
C. Ring main system
D. All are equally reliable
Answer» D. All are equally reliable
Discussion
6.

Which of the following is the demerit of a constant voltage transmission system ?

A. Increase of short-circuit current of the system
B. Availability of steady voltage at all loads at the line terminals
C. Possibility of better protection for the line due to possible use of higher terminal reactants
D. Improvement of power factor at times of moderate and heavy loads
Answer» B. Availability of steady voltage at all loads at the line terminals
Discussion
7.

_______________are the conductors, which connect the consumer s terminals to the distribution?

A. Distributors
B. Service mains
C. Feeders
D. None of the above
Answer» C. Feeders
Discussion
8.

When a live conductor of public electric supply breaks down and touches the earth which of the following will happen?

A. Current will flow to earth
B. Supply voltage will drop
C. Supply voltage will increase
D. No current will flow in the conductor
Answer» B. Supply voltage will drop
Discussion
9.

Series capacitors on transmission lines are of little use when the load VAR requirement is___________?

A. Large
B. Small
C. Fluctuating
D. Any of the above
Answer» C. Fluctuating
Discussion
10.

In the analysis of which of the following lines shunt capacitance is neglected?

A. Short transmission lines
B. Medium transmission lines
C. Long transmission lines
D. Medium as well as long transmission lines
Answer» B. Medium transmission lines
Discussion