A.contaminated with sludge
B.contaminated with carbon
C.diluted with fuel oil
D.diluted with water
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A.the solid impurities of large particle
B.the solid impurities of fine particle
C.the water content
D.both water and solid impurities
A.brought about
B.caused for
C.resulted from
D.led
A.sliding piston rings
B.engines camshaft
C.small pumps
D.forced feed system
A.excessive heat
B.friction
C.oxidation
D.high pressure
A.is made to circulate out of the system
B.is made to circulate within the system
C.is made circulate within the system
D.is made circulate out of the system
最新試題
Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?（）
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What is the function of the thrust bearing?（）
What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?（）
A diesel engine piston ring face is in direct contact with the （）.
Lube oil filters remove contaminants more efficiently if the oil being filtered is （）.
When would the available energy of the exhaust gases of a two-stroke/cycle diesel engine be insufficient to drive an exhaust gas turbocharger, resulting in the incorrect amount of air for combustion?（）
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.
Maximum horsepower of a diesel engine is attained （）.
To determine if the lube oil filter elements need changing, （）.