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- Subject
- Electrical Machine Designelectrical-engineering-mcqs › electrical-machine-design
- Published
- 22 Dec 2018
- Last updated
- 28 May 2026
Explanation
Transformers rated above 30 kVA improve their heat dissipation by employing various techniques such as corrugations, fins, tubes, and radiator tanks. Therefore, all the options listed contribute to enhancing the cooling efficiency.
More Electrical Machine Design MCQs
Practice related questions from the same subject.
- 1.How does the input impedance of a JFET compare to that of a conventional transistor?
- 2.What level of permeability does cold rolled grain-oriented steel exhibit along the grain direction?
- 3.What type of winding configuration is typically used in transformers when cylindrical coils are made with round conductors?
- 4.In transformers, multi-layer helical windings are typically employed as high voltage windings for which voltage range?
- 5.What type of magnetic permeability does cold-rolled grain-oriented steel exhibit along the grain direction?
- 6.In which type of transformer are helical windings typically employed?
- 7.Disc windings are mainly employed in which type of transformers?
- 8.For transformers with what capacity range is the forced circulation of oil and air commonly implemented?
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