1000+ Transformer Multiple Choice Questions and Answers Pdf - 1

Question: 1

Scott connections are used to convert

(A) three phase supply to D.C. supply

(B) three phase supply to three phase supply

(C) three phase supply to single phase supply

(D) three phase supply to two phase supply

Ans: D

three phase supply to two phase supply

Question: 2

In core-type transformers, the concentric windings are used with

(A) high voltage winding placed next to core

(B) high voltage winding on the outer side

(C) low voltage winding on the outer side

(D) low voltage winding placed next to core

Ans: D

low voltage winding placed next to core

Question: 3

The short circuit voltage of a transformer mainly depends on the

(A) cross sectional area of the iron core

(B) ohmic resistance of primary winding

(C) ohmic resistance of secondary winding

(D) magnitude of leakage flux

Ans: D

magnitude of leakage flux

Question: 4

The maximum load that a power transformer can carry is limited by its

(A) copper loss

(B) voltage ratio

(C) temperature rise

(D) dielectric strength of oil

Ans: B

voltage ratio

Question: 5

Short circuit test on transformers is conducted to determine

(A) eddy current losses

(B) core losses

(C) copper losses

(D) hysteresis losses

Ans: C

copper losses

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