单项选择题
A.Settling B.Straining C.Spraying D.Atomizing
In a diesel engine, an extremely leaking exhaust valve ...
单项选择题In a diesel engine, an extremely leaking exhaust valve can cause （）.
A.misfiring B.pre-ignition C.interrupted scavenging D.reduced scavenging
Diesel engine exhaust temperatures may be used to indic...
单项选择题Diesel engine exhaust temperatures may be used to indicate （）.
A.leaking exhaust valves B.an overloaded cylinder C.a clogged injector nozzle D.all of the above
In a bypass type lubrication system for a diesel engine...
单项选择题In a bypass type lubrication system for a diesel engine, the dirty oil line to the centrifuge should be taken from the （）.
A.lube oil pump suction line B.lube oil pump discharge line C.bottom of the lube oil sump D.outlet from the lube oil header
