DieselShip's Online Content Library

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)

Q8. Write short notes on the following; A. Measures to stop exhaust gas leakage in the engine room; B. Measures to stop oil leakages in the engine room.

Q5. With reference to air receivers and bottles explain with reasons: A. Why regular systematic internal inspection is advisable? B. Which internal areas of large receivers should receive particularly close examination? C. How bottles are inspected internally and what parts should be closely examined? D. How the condition of a bottle or receiver that cannot be inspected internally is checked?

Q8. Describe the hull inspection that you would carry out in the dry dock stating what inspection you would make as the work started during and after completion of work of the following RUDDER Inspection of large seawater inlet chest and valve, A. Anchor cables; B. Forward end of ship; C. Propeller and stem bush; D. Opening in shell plating; E. Shell plating.

Q9. Sketch and describe an auxiliary boiler safety valve; Explain which areas of the valve described above, require particularly close attention during overhaul; Describe how the valves are set after overhaul.