Q4. With reference to a 2- stroke slow speed main propulsion engine air starting system:
(a) State, with reasons, three safety features incorporated in an air starting system. (8)
(b) State with reason why an engine may fail to turnover on air (8)
- - -PREVIOUSLY ASKED - - -
Q4. With reference to a 2- stroke slow speed main propulsion engine, sketch a line diagram showing the air starting system:
Q9. During recent periods of manoeuvring, a number of air start valve bursting discs or cones have failed. In the circumstance, indicate how the actual cause might be:
(a) Detected (8)
(b) Rectified (8)
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