Which of the following is the main advantage of an auto-transformer over a two winding transformer?

Related Mcqs:

The permissible flux density in case of cold rolled grain oriented steel is around__________?

A. 1.7 Wb/m2 B. 2.7 Wb/m2 C. 3.7 Wb/m2 D. 4.7 Wb/m2...

The thickness of laminations used in a transformer is usually____________?

A. 0.4 mm to 0.5 mm B. 4 mm to 5 mm C. 14 mm to 15 mm D. 25 mm to 40 mm...

A Buchholz relay can be installed on______________?

A Buchholz relay can be installed on A. auto-transformers B. air-cooled transformers C. welding transformers D. oil cooled transformers...

Which of the following loss in a transformer is zero even at full load ____________?

A. Core loss B. Friction loss C. Eddy current loss D. Hysteresis loss...

Reduction in core losses and increase in permeability are obtained with transformer employing__________?

A. core built-up of laminations of cold rolled grain oriented steel B. core built-up of laminations of hot rolled sheet C. either of the above D. none of the above...