单项选择题

Higher than normal jacket water temperatures occurring in all cylinders of a diesel engine can result from a/an （）.

A.oil suction line restriction
B.correct amount of coolant
C.cavitation erosion in the water jackets
D.clogged sea suction strainer

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单项选择题
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
单项选择题
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
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