单项选择题

To determine if the lube oil filter elements need changing, （）.

A.open the filter and inspect the elements
B.check the lube oil pump discharge pressure
C.check the lube oil header pressure
D.check the pressure drop across the filter

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热门试题

单项选择题

Which of the two events listed occurs simultaneously in a two-stroke cycle diesel engine?（）

A.Exhaust and scavenging
B.Scavenging and compression
C.Ignition and expansion
D.Exhaust and compression

单项选择题

To successfully reduce an excessively high diesel engine exhaust gas temperature, you should （）.

A.reduce the engine driven fuel pump outlet pressure
B.retard the fuel injector timing to reduce power
C.increase the fuel rack setting
D.reduce the load on the engine