Q1. Suggest a procedure (in about 200 words) to the Chief Engineer, as to how you propose to ensure that the engine room overhead crane is maintained and operated correctly. What tests certificates are required for the overhead crane, and who is the issuing authority.
Q6. A. Describe the survey procedure of an oil lubricated stern bearing and shaft. (8)
B. Explain how the integrity of the outboard seal of an oil lubricated stern tube may be proved before the dry-dock is flooded. (8)
Q7. Fatigue is one of the main causes of crankshaft failure - A. Indicate on a sketch the most likely location of a fatigue crack; B. Explain how a fatigue failure is identified; C. Describe how a fatigue crack may be initiated; D. Describe, with the aid of sketches, the methods used to inhibit fatigue cracks.
Q4. An auxiliary engine exhibits a tendency to hunt to such an extent that the engine speed variation prohibits the connection of the machine to the switchboard. A. Discuss the possible causes of hunting; B. Explain how the problem of hunting can be rectified.
Q7. For a fully automatic provisions refrigeration system incorporating a number of rooms.
A. Explain how each room temperature is set. (4)
B. Describe the sequence of events following a demand for increased refrigerant flow from one room. (4)
C. State with reasons the devices incorporated into the system to protect the machinery and equipment against malfunction. (4)
D. State how satisfactory operation of the plant can be established? (4)
Q6. One of the F.O. Storage tank in the engine room is due for survey by classification society. Keeping in mind the safety of personnel, Enlist the procedure you will follow, to prepare the same for internal examination. (16)
Q7. With reference to starting air line systems: (16)
a) List causes leading to starting airline explosion on a 2 stroke engine.
b) List indications that will give warning of above.
c) List action, precautions and maintenance required to prevent above.
Q6. Describe the hull inspection that you would carry out as the senior engineer of ship in dry dock stating what defects you may find and the repairs that may be necessary with respect to;
A. Shell plating; B. Forward end of ship; C. Aft end of ship; D. Opening in shell plating; E. Rudder; F. Propeller and stern tube;
Q1. With reference to Auxiliary boiler safety valves.
A. Describe, with the aid of a sketch, the safety valve for an auxiliary boiler. (6)
B. Identify with reasons, the parts that require particularly close attention during overhaul. (5)
C. Describe how the safety valves are reset after an overhaul. (5)
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