Q1. (a) In the case of a main engine and Controllable Pitch Propeller not responding to bridge control, describe the routine for changing to and using Engine Room control. (8)
(b) Explain how control of fuel pump delivery is achieved when emergency manoeuvring on engine side control of a large 2 stroke crosshead engine. (8)
Q2. (a) Explain the meaning of the term Supercharging and state how it is achieved. (8)
(b) State how would you ascertain that EACH of the following components had become fouled:
(i) Charge air intercooler (4)
(ii) Air intake suction filters. (4)
Q3. With reference to high viscosity fuel oil:
(a) Explain how it is treated between storage tank and main engine. (10)
(b) State the purpose for the treatment explained in part (a) (6)
Q4. With respect to two-stage reciprocating compressors used for air start purposes:
(a) State FOUR reasons for taking too long to fill the main starting air bottles. (8)
(b) State FOUR safety devices that may be fitted. (8)
Q5. With reference to an auxiliary boiler. state for EACH of the following circumstances the action to be taken, giving a reason for EACH action:
(a) No water level visible in gauge glass (4)
(b) Safety valve lifting (4)
(c) Excessive smoking during firing (4)
(d) Excessively high chloride content of boiler water. (4)
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