Sumpner’s test is conducted on transformers to determine_____________?

Related Mcqs:

The efficiency of a transformer will be maximum when_____________?

A. copper losses = hysteresis losses B. hysteresis losses = eddy current losses C. eddy current losses = copper losses D. copper losses = iron losses...

The chemical used in breather for transformer should have the quality of____________?

A. ionizing air B. absorbing moisture C. cleansing the transformer oil D. cooling the transformer oil...

Which of the following property is not necessarily desirable in the material for transformer core ?

A. Mechanical strength B. Low hysteresis loss C. High thermal conductivity D. High permeability...

For the parallel operation of single phase transformers it is necessary that they should have___________?

A. same efficiency B. same polarity C. same kVA rating D. same number of turns on the secondary side....

The efficiencies of transformers compared with that of electric motors of the same power are____________?

A. about the same B. much smaller C. much higher D. somewhat smaller E. none of the above...