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COM 1
JUNE 2024
SR.NO. MEP - 2406
EXAMINATION OF MARINE ENGINEER OFFICER
Function: Maintenance & Repair at Management Level
MARINE ENGINEERING PRACTICE
M.E.O. CLASS II
TIME ALLOWED - 3 HOURS
Total Marks - 100
(India 2024)
Instructions :
1. Answer SIX questions only
2. All Questions carry equal marks
3. Neatness in handwriting and clarity in expression carries weightage
4. Illustration of an answer with clear sketches / diagrams carries weightage.
5. State answering from the backside of the front cover page.
6. Blank pages if any, to be struck by (X) at the end of each question.
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Q1. With regard to the main turbine lubrication oil system:
a) (i) Describe the effects of tin oxide corrosion. (5)
(ii) Explain the actions to be taken if this occurs in a high-pressure turbine thrust bearing. (5)
b) Discuss the factors that determine the various filtration sizes. (6)
2014/SR06 2022/NOV/Q6 2023/JULY/Q1 2024/JAN/Q3 2024/JUN/Q1
Q2. a) Comment on the reliability and maintenance requirements of the following.
(i) Pneumatic control equipment,
(ii) Electro-mechanical control equipment,
(iii) Electronic control equipment. (12)
(b) Discuss the routine attention required and the defects, which may occur in service. (4)
2008/JAN 2022/NOV/Q4 2023/MAR/Q4 2024/JUN/Q2
Q3. Discuss the advantages and disadvantages of adopting the following policies for maintenance of
main and auxiliary diesel engines.
A. Planned maintenance.
B. Condition monitoring.
C. Periodic replacement of components. (16)
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2024/JUN/Q3
Q4. It is detected that the refrigerating compressor on board your ship has not been properly aligned
with the motor, after a major overhaul ashore, enumerate how the misalignment is detected and
remedied. (16)
2011/MAR/Q9 2024/JUN/Q4
Q5. A. Outline the procedure for the inspection of the rudder in a dry dock. (8)
B. What are the requirement with respect to steering gear as per SOLAS 74, as amended for the
following:
i. Relief valve.
ii. Steering gear control.
iii. Electrical power circuits. (8)
2010/SR4 2006/SR3 2010/SR3 2012/SR09 2017/SR11 2018/OCT 2021/FEB/Q2
2021/AUG/Q1 2022/APR/Q2 2023/APR/Q8 2024/JUN/Q5
Q6. A. Describe the events leading to a crankcase explosion.
B. State how overheating might be indicated other than by a mist detector. (4)
C. Discuss the procedure to follow in the invent of overheating being indicated. (6)
D. State how severity of a crankcase explosion is limited. (6)
2009/SR3 2008/SR11 2006/SR3 2005-6/EMG 2010/SR4 2010/SR3 2012/SR09
2015/SR04 2015/SR10 2016/SR08 2018/SR02 2021/JAN/Q6 2024/JUN/Q6
Q7. Under Continuous survey of machinery (CSM) bottom end bearing of a large 2stroke slow speed
engine is due for survey.
A. As second engineer explain the procedure involved in complete inspection of a bottom end bearing.
(8)
B. List the precaution to be taken. (2)
C. Indicate the reasons for possible defects which could be encountered and state how they may be
rectified. (3)
D. What test are carried out on completion of survey and re-assembly. (3)
2009/SR8 2007/SR3 2010/SR1 2012/SR1 2012/SR12 2013/SR1 2013/SR10
2013/SR11 2014/SR01 2014/SR11 2014/SR12 2015/SR01 2015/SR03 2015/SR06
2015/SR08 2016/SR02 2016/SR06 2014/SR03 2016/SR11 2016/SR12 2017/SR03
2017/SR04 2017/SR09 2017/SR10 2017/SR12 2018/SR01 2018/SR07 2020/NOV/Q7
2021/JAN/Q1 2021/APR/Q1 2021/JUL/Q2 2021/OCT/Q9 2021/DEC/Q2 2022/FEB/Q6 2022/NOV/Q8
2024/JAN/Q1 2024/JUN/Q7
Q8. With reference to auxiliary boiler safety valves:
a) Describe how the valves are set to lift at the desired pressure under steam. (6)
b) Describe the precautions to be taken to ensure that the valve cannot be tampered with after setting
is completed. (5)
c) Briefly discuss accumulation of pressure test. (5)
2024/JUN/Q8
Q9. A) Describe the procedure to be undertaken when, upon a routine schedule for changing fuel
injector on a main engine, it is found that the injector body is seized and cannot be removed by
conventional means. (10)
B) Briefly explain the routine tests that are carried out on main engine fuel injectors. (6)
2020/NOV/Q8 2021/APR/Q8 2024/JUN/Q9
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