Q1. Describe the actions necessary to prepare the engine room for rough weather. (16)
Q2. Describe, with the aid of sketches, a plate type heat exchanger (16)
Q3. State the MARPOL regulations for pumping engine-room bilges in special areas (16)
Q4. (a) With reference to a control system, list FOUR examples of a measured variable. (4)
(b) Explain the meaning of the term two step control, giving one example of its use. (6)
(c) Explain the meaning of the term proportional control, giving one example of its use. (6)
Q5. With reference to main diesel engine starting air lines:
(a) Describe the main cause of starting air line explosion (8)
(b) Explain how a leaking start air valve can be identified while the engine is running (4)
(c) State four different safety devices which can be incorporated in to the starting air line to limit the damage caused by an explosion (4)
Q6. (a) With reference to earth faults on a ships electrical system. State how they are indicated (4)
(b) Describe how the location is found (6)
(c) State the safety precautions necessary in order to carry out repairs (6)
Q8. With reference to lubricating oil or fuel oil tanks that have ventilators on the vessels main weather deck, explain EACH of the following:
(a) The purpose of the ventilation. (4)
(b) How ingress of sea water in bad weather is prevented (4)
(c) How the risk of fire entering the ventilator is reduced (4)
(d) How the risk of pollution is reduced. (4)
Q9. Explain the meaning and purpose of EACH of the following ship terms:
(a) Bilge keel (4)
(b) Freeing port (4)
(c) Longitudinal (4)
(d) Frame (4)
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