1000+ Transformer Objective Questions and Answers Pdf - 1

Question: 1

The purpose of providing an iron core in a transformer is to

(A) reduce eddy current losses

(B) decrease the reluctance of the magnetic path

(C) reduce hysteresis loss

(D) provide support to windings

Question: 2

A transformer transforms

(A) frequency

(B) power

(C) voltage

(D) current

Question: 3

No load current of a transformer has

(A) has small magnitude and low power factor

(B) has small magnitude and high power factor

(C) has high magnitude and high power factor

(D) has high magnitude and low power factor

Question: 4

In a transformer the tappings are generally provided on

(A) primary side

(B) secondary side

(C) high voltage side

(D) low voltage side

Question: 5

A transformer oil must be free from

(A) moisture

(B) gases

(C) odour

(D) sludge