MARINE ENGINEERING KNOWLEDGE (GENERAL)

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AUGUST 2021
2108

EXAMINATION OF MARINE ENGINEER OFFICER
Function: Marine Engineering at Management Level
MARINE ENGINEERING KNOWLEDGE (GENERAL)
M.E.O. Class II
(TIME ALLOWED - 3 HOURS)
Total Marks - 100
India (2021)

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. All unused pages of the answer script must be cancelled out by two lines (X) across the page

Q1. With regard to care of lubricating oils onboard, answer the following:
(a) Microbial degradation of lubricating oil and measures to prevent the same
(b) Methods of ensuring correct sampling is done for the purpose of shore based testing.
(c) If the shore based testing results show an abnormal values of water content and TBN for the crank case lub
oil of a slow speed main engine, what will be interpretation and subsequent action?
2012/DEC 2013/SR1 2013/JUL 2014/AUG 2014/NOV 2015/JAN 2015/FEB
2015/JUN 2015/SEP 2016/FEB 2016/AUG 2016/OCT 2016/SR16 2017/JAN
2017/JUN 2017/JUL 2017/DEC 2018/JULY 2019/JUN 2020/FEB/Q3 2020/NOV/Q1
2021/JAN/Q9 2021/APR/Q1 2021/AUG/Q1


Q2. With reference to the carriage and pumping of liquefied gas cargo:
A. Sketch a suitable pumping system labelling the component parts;
B. State;
i) Why submerged hydraulically driven pumps are not used;
ii) How overheating of pump drive shaft bearings is avoided;
C. State, how the risk of fire and explosion in cargo tanks is obviated both in the loaded and discharged condition.
2009/FEB 2008/JUN 2006/APR 2011/MAR 2010/JUL 2010/MAR 2011/FEB
2010/NOV 2011/MAR 2010/APR 2011/OCT 2012/OCT 2013/OCT 2014/MAR
2015/FEB 2015/SEP 2010/OCT 2016/APR 2016/SEP 2017/JAN 2017/OCT
2017/DEC/Q2 2021/JUL/Q2 2021/AUG/Q2


Q3. A. Describe the preparation necessary before the application (in dry dock) of sophisticated or approved long
life coating to the underwater surface of the hull.
B. State the significance of the roughness profile.
C. List the different sophisticated coatings which are available.
2012/MAR 2016/JUN 2021/AUG/Q3


Q4. With reference to radial lip seals for propulsion shafting :
(a) Sketch and describe an outboard seal arrangement as fitted to an oil lubricating stern tube;
(b) Explain, with reasons, the possible actions that should be taken in the event of loss of oil from the heater tank.
2021/AUG/Q4



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Q5.A. Sketch a watertight door and frame showing the manner of attachment to the bulkhead and the additional
reinforcement carried by the bulkhead to compensate for the aperture.
B. Explain how water tightness of the door and frame mating surfaces is ensured with hydrostatic pressure
tending to force the faces apart.
C. (i) Describe the means of closing the door;
(ii) State the number of closing stations and the position of each.
2007/OCT 2011/JUN 2011/DEC 2012/MAR 2012/JUN 2014/JAN 2021/AUG/Q5


Q6. A. Sketch a line diagram showing the layout components of a hydraulic system with a variable delivery,
Pressure compensated pump and accumulator, suitable for the operation of deck machinery.
B. Describe the operation of the system sketched in 6(a).
2021/AUG/Q6


Q7. A. Describe the procedure to be adopted for the inspection of a safety valve fitted to an exhaust gas boiler
stating, with reasons, which parts should receive particularly close attention.
B. Describe the procedure for the setting of safety valves of exhaust gas fired auxiliary boilers;
C. Explain the required action a watch-keeping engineer should take after the setting of safety valves as in (B)
2010/DEC 2011/OCT 2010/OCT 2010/DEC 2009/JUN 2008/SEP 2007/SEP
2010/NOV 2007/SR5 2010/JUN 2012/SR1 2012/OCT 2012/DEC 2013/AUG
2013/SEP 2014/JAN 2014/JUL 2014/AUG 2014/NOV 2015/FEB 2015/JUN
2015/SEP 2015/DEC 2017/JAN 2017/DEC 2019/JULY 2021/JAN/Q4 2021/JUL/Q3
2021/JUL/Q7(M) 2021/AUG/Q7


Q8. A. Explain the action of EACH of the following metallurgical mechanism:
(i) Creep;
(ii) Brinelling;
(iii) Fretting;
(iv) Fretting corrosion;
B .State, with reasons, where EACH of the mechanisms in Q.8(A) may occur in ship propulsion System.
2009/JUN 2008/NOV 2008/JUN 2008/SR1 2007/FEB 2006/EMG 2009/DEC 2012/MAR 2014/FEB
2014/OCT 2015/AUG 2017/APR 2017/JUL 2018/JAN 2018/FEB 2018/JUNE 2018/JULY 2018/OCT
2019/FEB 2019/SEP 2020/NOV/Q7 2021/APR/Q5 2021/APR/Q7 2021/AUG/Q8


Q9. With reference to electro-hydraulic steering gears:
A. Explain in terms of control parlance, the function of the “Hunting gear”;
B. Explain the consequences if the standby pumping unit is motored;
C. State TWO methods employed to prevent the standby hydraulic pump being motored by the operating unit.
2009/FEB 2007/SR5 2006/SEP 2010/NOV 2010/JUL 2011/JUL 2011SR/10
2012/SR1 2012/OCT 2012/DEC 2013/SEP 2013/OCT 2014/JAN 2014/JUL
2014/NOV 2015/FEB 2015/SEP 2016/SEP 2017/JAN 2017/JUN 2017/DEC
2021/JUL/Q3 2021/AUG/Q9




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JULY 2021
2107 – MEKG

EXAMINATION OF MARINE ENGINEER OFFICER
Function: Marine Engineering at Management Level
MARINE ENGINEERING KNOWLEDGE (GENERAL)
M.E.O. Class II
(TIME ALLOWED - 3 HOURS)
Total Marks - 100
India (2021)

NB:

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

Q1. With reference to hydraulic steering gears, sketch and describe each of the following: (A)Single failure
concept;
(B)100 Percent redundancy.
2009/JUN 2008/JUN 2011/NOV 2012/FEB 2014/APR 2014/JUL 2015/DEC
2016/JAN 2016/JUL 2016/NOV 2020/FEB/Q6 2021/JAN/Q3 2021/JUL/Q1


Q2. A. With reference to fatigue of engineering components;
A. Explain the influence of stress level at cyclical frequency on expected operating life.;
B. Explain the influence of material defects on the safe operating life of engineering component;
C. State the factors which influence the possibility of fatigue cracking of an auxiliary boiler feed water pump shaft
and explain how the risk of such cracking can be minimized
2009/JUL 2008/JUN 2007/JUL 2007/EM 2006/SR5 2011/FEB 2010/FEB 2010/SR1
2012/JUN 2013/FEB 2013/APR 2013/JUN 2013/JUL 2013/OCT 2013/NOV 2013/DEC
2014/S03 2014/APR 2014/JUL 2014/SEP 2014/DEC 2015/JUN 2015/OCT 2016/SR1
2016/JUL 2016/AUG 2016/NOV 2017/MAR 2017/JUN 2018/FEB 2018/MAR 2019/DEC
2020/OCT 2020/DEC/Q3 2021/FEB/Q2 2021/JULY/Q2


Q3. A. Describe the procedure to be adopted for the inspection of a safety valve fitted to an exhaust gas boiler
stating, with reasons, which parts should receive particularly close attention.
B. Describe the procedure for the setting of safety valves of exhaust gas fired auxiliary boilers;
C. Explain the required action a watch-keeping engineer should take after the setting of safety valves as in (B)
2010/DEC 2011/OCT 2010/OCT 2010/DEC 2009/JUN 2008/SEP 2007/SEP
2010/NOV 2007/SR5 2010/JUN 2012/SR1 2012/OCT 2012/DEC 2013/AUG
2013/SEP 2014/JAN 2014/JUL 2014/AUG 2014/NOV 2015/FEB 2015/JUN
2015/SEP 2015/DEC 2017/JAN 2017/DEC 2019/JULY 2021/JAN/Q4 2021/JUL/Q3


Q4. Explain how the ingress of sea water is prevented in an oil lubricated stern bearing system. Should the system
fail, describe the corrective action possible whilst the vessel is afloat. State why two stern bearing oil header tanks
are fitted in some instances?
2010/DEC 2012/JUL 2012/OCT 2013/APR 2015/FEB 2015/MAR 2015/SEP 2016/JUL
2016/NOV 2017/FEB 2017/DEC 2018/AUG 2018/NOV 2018/DEC 2021/JAN/Q6 2021/MAR/Q2
2021/APR/Q3 2021/JUL/Q4



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Q5. A. Describe a transverse bow thrust unit using CPP, mention how it should be made to support and how the
strength of thrust and reverse thrust are achieved;
B. State with reasons, a suitable prime mover for the controllable pitch propeller;
C. State whether the thrust unit delivers a relatively low pressure head with high volume output or high pressure
head with low volume output.
2008/AUG 2007/AUG 2011/JUN 2012/JUN 2014/APR 2014/NOV 2015/AUG
2016/JAN 2018/JAN 2018/JULY 2020/FEB/Q8 2021/JAN/Q5 2021/JUL/Q5


Q6. With respect to properties of fuel oil, explain the significance of the following terms.
(a) Calculated Carbon Aromaticity Inbox (CCAI).
(b) Open flash point and Closed flash point.
(c) The importance of Sodium to Vanadium Ratio.
(d) Octane Number.
2018/SEP 2019/JAN 2019/FEB 2019/MAR 2019/JUN 2019/AUG 2019/DEC
2020/JAN 2020/MAR/Q2 2020/OCT 2021/FEB/Q1 2021/JUL/Q6


Q7. Compare the destructive testing done on engineering materials with non-destructive testing done on
engineering components. Briefly describe one destructive test and two non-destructive tests to illustrate your
answer
2015/FEB 2015/JUN 2015/SEP 2016/SR16 2017/JAN 2017/DEC 2018/NOV
2020/NOV/Q9 2021/APR/Q8 2021/JUL/Q7


Q8. With respect to refrigeration gases used on-board vessels, answer the following:
A. Explain Ozone Depleting Potential of conventional refrigerant gases.
B. Name the alternate refrigerant gases available and being used onboard.
C. What are the steps are taken to minimize the release of refrigerant gases from the plant during normal
operation and maintenance activities?
2021/JUL/Q8


Q9. With reference to Flue gas Inert gas system:
A. Sketch a line diagram showing a typical 'Inert Gas System' used for inerting the cargo tanks of oil tankers,
labelling the component parts.
B. Describe the system.
C. State what oxygen content you would expect in the flue gases if good combustion is achieved.
2019/MAR 2019/APR 2019/AUG 2019/SEP 2019/OCT 2019/NOV 2019/DEC
2020/JAN 2020/DEC/Q5 2021/JUL/Q9




PLEASE CLICK HERE TO PURCHASE OUR ORIGINAL BOOKS. WE HAVE SOLVED ALL PAST EXAM PAPERS OF
LAST 15 YEARS. CLEAN CONTENT, CAD DRAWING WITH OUR 15 YEARS OF EXPERTISE IN MARITIME
PUBLISHING





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