单项选择题

In a four-stroke/cycle diesel engine, badly worn intake valve guides can cause excessive（）.

A.exhaust pressure
B.exhaust temperatures
C.cooling water temperatures
D.lube oil consumption

相关考题

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A.smoother engine operation
B.advanced fuel ignition
C.increased fuel economy
D.reduced engine power

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A.Indicated exhaust pressure readings will increase
B.Pyrometer responses will be retarded
C.Indicated cylinder temperature readings will increase
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Excessive lubricating oil consumption in a running dies...

单项选择题Excessive lubricating oil consumption in a running diesel engine can be caused by （）

A.clogged lube oil piping
B.excessive valve-guide clearance
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D.low lube oil temperature

船舶电气与船舶安全

In a four-stroke/cycle diesel engine, badly worn intake valve guides can cause excessive（）.