A.the splashing of lubrication oil by the crankshaft
B.the dilution of crankcase oil with particles of combustion
C.broken fuel lines spraying oil on the crankcase
D.the ignition of unburned fuel and air in the crankcase
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A.Lube oil pressure and temperature
B.jacket water pressure and temperature
C.Engine over-speed
D.Lube oil sump level
A.To add power to the engine
B.To keep the engine firmly attached to its supporting base
C.To keep moving engine part in their proper relative positions
D.To rotate the crankshaft
A.droop
B.dead banding
C.dash potting
D.hunting
A.cylinder head cracks
B.piping joints
C.pump leaking
D.all of the above
A.reduce the ring groove wear rate
B.seal against crankcase vapors
C.lessen the wear on aluminum part of the cylinder
D.allow for the greater expansion rate of aluminum
最新試題
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