A.main bearing shells
B.main bearing
C.steel
D.bearing metal
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A.inside the bearing
B.outside the bearing
C.covering the crankshaft
D.none of the above
A.seized
B.clogged
C.melted
D.inserted
A.sufficient quantity； measured
B.measured quantity；sufficient
C.excessive quantity；sufficient
D.the less quantity the better；the more the better
A.atmosphere
B.the fresh water
C.compressed air
D.chemical compounds
A.a filter
B.a strainer
C.a magnetic filter
D.a fine strainer
最新試題
The function of diesel engine piston compression rings is to （）.
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.
Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.
White smoke exhausting from an operating diesel engine may indicate （）.
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?（）
Maximum horsepower of a diesel engine is attained （）.
Lube oil cannot be efficiently filtered if its （）.
Routine monitoring of a diesel engine should include （）.
What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?（）