Q1. With respect to Main Propulsion Engines, state the immediate action to be taken as Engineer Officer of the watch in the event of EACH of the following, stating ONE reason why EACH action is necessary:
(a) Turbocharger repeatedly surging. (4)
(b) Air start manifold/branch pipe overheating local to one unit. (4)
(c) Low scavenge air temperature alarm. (4)
(d) Engine misfires, fuel rail pressure low alarm activates, booster pump pressure high (4)
Q2. (a) Sketch and label an obscuration type oil mist detector that incorporates a reference tube. (8)
(b) Explain the operation of the sketch drawn in part (a). (8)
Q3. Describe the procedure to change the fuel supply system of the main propulsion engine from high viscosity fuel to low viscosity fuel such as diesel oil whilst on passage. (16)
Q4. As engineer officer of the watch explain the procedure to be followed in the event of a crankcase oil mist alarm on a bridge controlled, constant speed, main propulsion engine fitted with a controllable pitch propeller. (16)
Q5. (a) State the name given to the water level indicators mounted on a boiler. (2)
(b) State why at least two of the items stated in (a) are fitted. (4)
(c) List FIVE boiler mountings which are subject to survey, other than those stated in (a). (10)
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