The rate of cylinder lubricating oil metered to each cylinder of a large low-speed main propulsion diesel engine is （）<br>A:the same, whether at sea, or during maneuvering<br>B:adjusted during each hour of operation while at constant RPM<br>C:higher at sea than while maneuvering<br>D:lower at sea than while maneuvering

The rate of cylinder lubricating oil metered to each cylinder of a large low-speed main propulsion diesel engine is （）
A:the same, whether at sea, or during maneuvering
B:adjusted during each hour of operation while at constant RPM
C:higher at sea than while maneuvering
D:lower at sea than while maneuvering

出自：海船船员证

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