Testing and maintenance of electrical machine MCQ Questions and Answers
1. Which type of fire extinguisher is used for electrical fire :
Answer : C
2. Maintenance consist of the following action(s)
Answer : D
3. Scheduled maintenance is ______ between breakdown maintenance and the preventive maintenance.
Answer : B
4. Changes are made to the system to reduce the future system failure chances is called :
Answer : A
5. Corrective maintenance is needed when :
Answer : D
Testing and maintenance of electrical machine MCQ
6. In an induction motor, the short circuit test is performed by
Answer : C
7. Watt meter reading in no-load test of induction motor gives :
Answer : D
8. Noise level test in a transfer is a :
Answer : C
9. While conducting short-circuit test on a transformer the following side is short circuited
Answer : B
10. A transformer oil must be free from :
Answer : D
Testing and maintenance of electrical machine MCQ
11. The transformer oil should have ______ volatility and ______ viscosity.
Answer : A
12. Sumpner’s test is conducted on transformers to determine
Answer : B
13. The dielectric strength of transformer oil is expected to be :
Answer : B
14. To run two alternators in parallel, the dark lamp method test is performed to ensure proper :
Answer : D
15. Swinburne’s test can be performed at :
Answer : B
Testing and maintenance of electrical machine MCQ
16. Size of foundation for electrical machine depends upon :
Answer : D
17. Vibration in electrical machine can be prevented :
Answer : C
18. A universal coupling is used to connect two shafts
Answer : C
19. Effect of moisture on the insulating materials is to
Answer : D
20. The complete circuit diagram of a 3-phase induction motor can be drawn with the help of
Answer : B
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