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單項選擇題

Loss of lubricating oil pressure to the main propulsion diesel engine will actuate a/an （）.

A.overspeed trip
B.audible/visual alarm
C.the ships/boats general alarm
D.reserve oil storage tank

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單項選擇題

A viscous damper, as used on a marine diesel, is a sealed precision built device which dampens the torsional vibrations in the （）.

A.camshaft
B.flywheel
C.crankshaft
D.thrust shaft

單項選擇題

A diesel engine is operating at 1800 RPM and driving a propeller at 600 RPMWhat is the speed reduction ratio?（）

A.030 to 1
B.300 to 1
C.333 to 1
D.330 to 1

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