单项选择题

When centrifuging heavy fuel oil, an important factor to consider is the （）
(1) flow rate
(2) viscosity of the fuel oil

A.(1) only is correct
B.(2) only is correct
C.both (1) and (2) are correct
D.neither (1) or (2) are correct

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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
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
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