Function : 6 - MEO Class 4 Orals : MEP or MROL [Maintenance and Repairs at Operational Level]

Oral question asked by examiners
1. What are the boiler water test and explain the procedure?
3. What are the types of piston ring clearance and explain the procedure?
4. Explain about welding defects?
5. How to measure the tappet clearance?
6. How to purge the air from refrigeration system?
7. What are the safety valve parts and explain each of them?
8. Actions to be taken in the case of low level water alarm in boiler?
9. Explain the procedure for gauge glass blow through?
10. What is the reason for purifier overflow reason?
11. Reason for a frequent cut in and cut out in refer?
12. High pressure cut out reason in refer? (refer to the answer of freq cut in and out)
13. Explain the fuel pump overhauling procedure?
14. Procedure for checking main engine bottom end bearing clearance?
15. How to perform an accumulation pressure test?
16. What happens, if the water level in the boiler is not maintained?
17. What are the different types of burners?
18. What is the reason for the flame failure alarm?
19. What are the safeties of compressor?
20. What is bumping clearance and its importance?
21. Reason for providing non-return valve on compressor discharge side?
22. How will you check the low lube oil pressure or high air temperature trip in the compressor?
23. What actions will you take when the bursting disc will burst?
24. What are the functions of pairing disc?
25. What is the reason, purifier vibrates at time of stopping?
26. what is the reason for providing clutch and why it is not directly coupled?
27. What are the check we need to do while starting a pump?
28. What is cavitation and how it is formed on propeller?
29. Purpose of wear ring and where it is fitted?
30. What are the maintenance to do for a engine room crane?
31. How to detect leaking in the shell and tube type heat exchanger?
32. How to measure the crankshaft deflection?
33. What is the procedure for fuel oil duplex filter change over?
34. Lube oil tests perform on board ship?
35. Purpose of gagging tool?
36. If the boiler alkalinity increases or decreases what will the action you take?
37. Procedure for the jacket cooling water test?
38. If chloride in boiler water increases what will you do?
39. What will do if crosshead bearing clearance increases?
40. what is the reason for bilge pump not taking suction?
41. How to check the bottom end clearance?
43. Scum blowdown procedure?
44. How to perform the fuel injection pressure test?
45. What are stresses acting on the con-rod?
46. What is difference between smoke tube boiler and water tube boiler?
47. Explain about various troubleshooting's of boiler?
48. what procedure for lube oil filter cleaning?
49. What are essential mounting on the boiler?
50. What are the checks to be done on air conditioning system from start to stop position? 
51. what is your action, as a duty engineer when you receive a low level water alarm in boiler?
52. What is the procedure for overhauling of centrifugal pump?
53. What is the K value? and its purpose in turbocharger?
54. What is NDT -Non Destructive Test and explain its methods?
55. Explain the procedure for overhauling of fuel injector?
56. Explain the procedure for overhauling of  exhaust valve?
57. What is the reason for scavenge fire and action to take when there is a scavenge fire?
58. What is the procedure for cylinder liner calibration?
59. What is the procedure for overhauling of cylinder head?
60. Explain about dye or liquid penetrant test?
61. What is the purpose of easing gear in safety valve?
62. What is the procedure for overhauling of caged exhaust valve?
63. Explain about scavenge space inspection?
64. What are the checks to be done air compressor on start, stop, operational conditions?
65. Explain the procedure for turbocharger washing?
66. Maintenance of water tube boiler.
67. Maintenance of Exhaust gas boilers.
68. Maintenance of smoke tube boilers.
69. Fuel pump overhauling procedure.
70. Maintenance schedule of auxiliary boiler.
71. Maintenance of auxiliary marine boiler.

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