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)
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)
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