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Q2. As a second engineer, you are required to offer for survey, to a Classification Society, a crosshead of the engine following an unscheduled repair due to bearing failure.

A. Outline the information you would be required to provide prior to the survey. (6)

B. Briefly describe the survey procedure likely to be adopted stating with reasons the areas which should receive close attention. (5)

C. State with reasons what information would be requested by the surveyor and /or the operation required to be observed after re-assembly of the crosshead. (5)

Q1. A. As second engineer describe the procedure involved in the complete inspection of a cylinder liner and piston assembly, indicating areas of significant interest.

B. Explain with reasons, possible faults which might be found;

C. Suggest how such faults might be avoided.

Q3: State how safety is achieved with regard to gas emission in battery rooms where a large number of lead acid cells are stored with reference to - A. Provision of lighting; B. Ventilation if a fan is fitted; C. Type of distilled water container for topping up; D. Use of tools and replacement of defective batteries.

Q8. Explain how each of the following conditions contributes to the satisfactory performance of oil centrifuges. A. Correct bowl speed; B. Cleanliness of bowl; C. Low rate of feed to the bowl; D. Contaminated oil preheated prior to centrifuging; E. Contaminated oil allowed standing for an appreciable time prior to centrifuging.

Q5: A. For an expansion valve, us fitted in a refrigeration system, name operational that may cause a high pressure cut –out operate?

B. Describe the preventive maintenance schedule to avoid reoccurrence of this situation stated in.

Q6.(a) Suggest four reasons why the temperature of the oil in the steering gear system may  become excessive.

(b) With reference to steering gears explain how the ship may be steered in each of the following circumstances;

(i) destruction by fire of the primary supply cable;

(ii) destruction by fire of the telemotor lines;

(iii) bearing failure in the running pump;

Q7. Recent experience has shown persistence damage occurring on seating faces of main engine exhaust valve, which is not confined to any particular unit; (a) State with reason the possible causes; (b) State the short-term action to be taken in order to minimize engine operational problem; (c) State with reason how future incident of this nature could be minimized

Q1.a) The UMS monitoring and control system of your ship has recently started to give false alarms and incorrect data printouts. State, with reasons, possible causes if the false alarms and readings are:

i) Localised to a particular area of engine operation

ii) General to the engine room

b) State, with reasons, the action you, as Second Engineer, would take to ensure continued safe operation of the vessel if the defects were general to the engine room

c) Explain the procedure you, as Second Engineer, would adopt in order to locate and rectify a general fault in the UMS system.

Q2. With reference to reciprocating air compressors explain the cause of the following faults.

A. Collapse of discharge valve springs;

B. Breakage of plate valves;

C. Overheating of the discharge air with an unrestricted air intake;

D. Inoperative piston rings.