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Q1. A fire in the exhaust gas boiler on a motor ship may develop in two or three stages. With reference to such situations, discuss: A. The factors which could be a cause for initiation and development of: (i) Ignition of soot; (ii) Small soot fires; (iii) High temperature fires. B. State the standing instructions you, as a Second Engineer Officer, would issue with respect to the action to be taken in the event of a boiler uptake fire.

Q3. A. Sketch and describe TWO methods that employ manometric means for measuring tank contents. (6)

B. State what corrections are made to the readings obtained by the methods described in (A) in order to gauge the mass contents? (5)

C. Explain how bunkering requirements may be estimated when no records of main engine fuel consumption are available on board. (5)

Q6. With respect to tankers describes: - (16)

A. How a pump room is ventilated?

B. How cargo tanks are ventilated?

C. Cargo tank protection as per SOLAS 1974.

D. Additional alarms provided for inert gas systems of the ‘inert gas generator’ type.

Q5. With reference to Boiler water tests carried out onboard:

A. Discuss the possible reasons for the following changes in boiler water test results, and state what actions should be taken in each case;

1. Reduction in total dissolved solids and chemical reserves.

2. Reduction in phosphate reserve, with increase in chlorides and total dissolved solids;

3. Reduction in alkalinity reserve only.

4. Increase in oxygen levels only.

B. State why the complete results of boiler water tests are logged or entered into a data retrieval system rather than a note being made of any particular result which may be outside set limits.

Q9: A new vessel exhibits severe aft end vibration

A. As a Second Engineer Officer, outline a procedure to investigate and identify the source of vibration

B. Suggest possible remedies to obviate / reduce aft end vibration.