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单选题
Lubricating oil is supplied to the crank-pin bearings in a marine diesel engine by （）.
A
internal crankshaft passages
B
immersion in oil
C
splash lubrication
D
injection lubrication
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单选题You are inspecting the lower main precision bearings on a diesel engine.You observe that about half the thin Babbitt linings are of a milky white colourThis condition is caused by （）A
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考题
单选题（） clearances in the main or crank pin bearings will sometimes be indicated by loss of pressure in the lubricating system before any bearing knock is heard.A
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考题
单选题The oil pressure and flow from each bearings can be checked when（）A
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the purifier driving gears are lubricated by the reclaimedB
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考题
单选题The function of lubricating oil is to （）A
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考题
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