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Function: Maintenance & Repair at Operational Level

This document contains a 10 question examination for Marine Engineer Officer candidates. The questions cover topics such as: 1) Inspecting components of a jacket cooling water plate type cooler during an overhaul. 2) Reasons for engine holding down bolt slackening, precautions when fitting engine chocks, and checks of the engine chocking system. 3) Protecting boilers and carrying out inspections when chemicals are found unfit for use in the last 10 days of a voyage. 4) Risks associated with opening a biological sewage system unit for repair, and the significance of biological oxygen demand.

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154 views2 pages

Function: Maintenance & Repair at Operational Level

This document contains a 10 question examination for Marine Engineer Officer candidates. The questions cover topics such as: 1) Inspecting components of a jacket cooling water plate type cooler during an overhaul. 2) Reasons for engine holding down bolt slackening, precautions when fitting engine chocks, and checks of the engine chocking system. 3) Protecting boilers and carrying out inspections when chemicals are found unfit for use in the last 10 days of a voyage. 4) Risks associated with opening a biological sewage system unit for repair, and the significance of biological oxygen demand.

Uploaded by

SHUSHEEL
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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95MEP-4

Sr. No. 6
EXAMINATION OF MARINE ENGINEER OFFICER
Function: Maintenance & Repair at Operational Level
MARINE ENGINEERING PRACTICE

M.E.O. Class IV
(Time allowed - 3hours)
India (2004) Afternoon Paper Total Marks 100

NB : (1) All Questions are Compulsory


(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.

1. A jacket cooling water, plate type cooler for the engine system is stripped open during overhaul
for survey purposes, State out a list of components; parts or areas, which you would like to
particularly check yourself before the survey.
2. (a) State FOUR reasons for persistent slackening of holding down bolts of a main engine.
(b) State FOUR precautions to be observed when fitting non-metallic chocks in order to ensure
accurate choking.
(c ) State the periodic checks to be made in order to assess the effectiveness of an engine chocking
system.
3. There are approximately ten days of a voyage remaining before reaching port and the chemicals
intended for boiler water treatment are found unfit for further use.
(a) Describe, with reasons, how the boiler and plant can be best protected whilst steaming before a
fresh supply of chemicals is received.
(b) Upon arrival at the port describe any inspection and precautions that may be necessary before
proceeding.
4. A biological sewage system develops a fault, which necessitates opening the unit for repair.
(a) The risk associated with opening he unit.
(b) The precaution taken to reduce the risk.
(c) Explain the significance of biological oxygen demand (B.O.D.).
5. How are heat exchangers protected from the effects of corrosion?
6. Work is being carried out in drydock on a large sea water inlet chest and the valves. Describe the
inspection you would carry out;
(a) As the work starts;
(b) During and after the work.
7. Describe how crankshaft deflections of our auxiliary diesel engine are measured. State how the
measurements can be checked for accuracy. Specify with reasons other checks that should be
made on the crankshaft.
8. With reference to ship’s rudder state:-
(a) Why a breached hollow rudder can add to fuel costs?
(b) Why excessive pintle clearance should not be tolerated?
(c) Why fitted bolts are used in connecting upper and lower stocks?
9. Describe the procedure for the regular maintenance routines to be carried out on the total flooding
CO2 system.
10. With reference to exhaust valves of an auxiliary diesel engine
(a) Describe how valves are reconditioned
(b) Explain how valve timing is checked and corrected.

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