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

Related Mcqs:

No-load on a transformer is carried out to determine______________?

A. copper loss B. magnetising current C. magnetising current and loss D. efficiency of the transformer...

The maximum efficiency of a distribution transformer is____________?

A. at no load B. at 50% full load C. at 80% full load D. at full load...

Which winding of the transformer has less cross-sectional area?

A. Primary winding B. Secondary winding C. Low voltage winding D. High voltage winding...

An open-circuit test on a transformer is conducted primarily to measure______________?

A. insulation resistance B. copper loss C. core loss D. total loss E. efficiency F. none of the above...

Which of the following acts as a protection against high voltage surges due to lightning and switching ?

A. Horn gaps B. Thermal overload relays C. Breather D. Conservator...