Meo class 4 oral and written questions

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Marine Electro Technology

Marine Electro Technology

1. What is the use of ‘kvar’ meter fitted on the MSB?
2. Where auto transformer starter is used on board ships and why?
3. Explain star delta starter?
4.Why starters are not used for land based installations?
5. Any two applications of zener diode on board ships?
6. How will you come to know whether a fuse is blown out or not, explain two methods
7. What 1s meant by intrinsically sate?
8. Name any three intrinsically safe equipments on board other than a torch light and lan
9. Explan the working principle of an explosimeter and reasons for false readings?
10. How will you check reverse power and overload relay in the MSB?
11. What are the routine maintenance in an alternator?
12. How will you confirm a solenoid is working or not?
13. What kind of starter could be used for force draught fan for the boiler?
14. How to check the insulation resistance of a DC motor?
15. How to use a voltmeter for synchronization in the absence of synchroscope and
Synchronizing lamps?
16. How does earth fault detector work
17. Explain the conditions of paralleling alternators?
18. Draw the synchronizing method?
19. What s he difference between a megger and a multimeter?
20. Comment on air circuit breakers?