Explore topic-wise MCQs in Transformers.

This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Transformers knowledge and support exam preparation. Choose a topic below to get started.

1.

If parallel arrangement is done the minimum distance between two earthing conductors should be _______

A. 10 meters
B. 5 meters
C. More than or equal to 10 meters
D. 2 meters
Answer» D. 2 meters
Discussion
2.

Earth contact material resistance should be ____________

A. Less than 2 ohms
B. More than 2 ohms
C. Depends on the circuit or system
D. Very high
Answer» B. More than 2 ohms
Discussion
3.

High voltage line is only disadvantageous in ______________

A. Small overhead lines
B. Small underground lines
C. Long overhead lines
D. Long underground lines
Answer» D. Long underground lines
Discussion
4.

For an un-earthed line voltage of line to earth can be ______________

A. More than line to neutral of earthed system
B. Less than line to neutral of earthed system
C. Equal to line to neutral of earthed system
D. Can t specify
Answer» B. Less than line to neutral of earthed system
Discussion
5.

Which method will reduce the cost of insulation between earth and cables?

A. Neutral solidly earthed
B. Neutral earthed via an impedance
C. Neutral isolated
D. Neutrally
Answer» B. Neutral earthed via an impedance
Discussion
6.

Earthed neutral allows rapid operation of protection to ___________

A. Line to line faults
B. Earthed faults
C. Other faults
D. For all faults
Answer» C. Other faults
Discussion
7.

Low voltage systems should be solidly earthed.

A. True
B. False
Answer» B. False
Discussion
8.

What is the low voltage range according to the earthing procedures?

A. 5 V 100 V
B. 0 V 100 V
C. 50 V 1000 V
D. 0 V 1000 V
Answer» D. 0 V 1000 V
Discussion
9.

Minimum voltage above which electrical system needs to be earthed is _____

A. 50 V
B. 5 V
C. 10 V
D. 20 V
Answer» E.
Discussion
10.

Which of the following neutral earthing method is disadvantageous?

A. Neutral solidly earthed
B. Neutral earthed via an impedance
C. Neutral isolated
D. Neutrally
Answer» D. Neutrally
Discussion
11.

Categories for a transformer earthing of a system neutral are ___

A. 2
B. 3
C. 4
D. Many
Answer» C. 4
Discussion