Crankcase explosions in propulsion diesel result from_____.
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
第1题
A.open the bypass line
B.cut in the lube oil cooler
C.pressurize the lube oil system
D.top off the expansion tank
第2题
A.Energy can be created or destroyed
B.Energy may not be transformed
C.The total quantity of energy in the universe is always the same
D.None of the above
第3题
A.run at an irregular speed
B.create high lube oil temperature
C.cause the engine to over-speed
D.cause blue smoke in the exhaust
第4题
A.piston
B.fuel injection pump
C.crankshaft
D.oil can
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