Electrical Engineering : Electrical Machine Design QUESTIONS AND ANSWERS :: part1 : 1 to 5
Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
1.The heated parts of an electrical machine dissipate heat into their surroundings by which of the following modes of heat dissipation ? |
| Conduction |
| Convection |
| Radiation |
| All ofthe above |
2.Materials exhibiting zero value of resistivity are known as ______ . |
| conductors |
| semiconductors |
| insulators |
| superconductors |
3.Commercial available medium size machines have a speed range of ______ . |
| 200 to 400 r.p.m. |
| 600 to 1000 r.p.m. |
| 1000 to 1500 r.p.m. |
| 2000 to 2500 r.p.m. |
4.The action of electromagnetic machines can be related to which ofthe following basic principles ? |
| Induction |
| Interaction |
| Alignment |
| All of the above |
5.Aluminium when adopted as a conductor material in ______ transformers, decreases the overall cost of the transformer |
| small size |
| medium size |
| large size |
| any of the above size |
More Electrical Machine Design QUESTIONS AND ANSWERS available in next pages
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