A . leaking exhaust valves
B . an overloaded cylinder
C . a clogged injector nozzle
D . all of the above
[单选题]Diesel engine exhaust gas temperatures can be used to determine individual cylinder ().A . performanceB . horsepower outputC . fuel consumptionD . scavenge effect
[单选题]A. two stroke diesel engine exhaust temperature will be lower than a four stroke diesel engine of the same displacement because the _____. ① MEP is lower and the scavenging air is cooling the exhaust gases ② valve overlap in a four strokeA.①B.②C.① an
[单选题]A two-stroke diesel engine exhaust temperature will be lower than a four-stroke diesel engine of the same displacement because the ()(1) MEP is lower and the scavenging air is cooling the exhaust gases(2) valve overlap in a four-strokeA . (1) only is
[单选题]A diesel engine may be hard to start if the ()A . air intake is restrictedB . engine is cranked too fastC . vibration dampener is faultyD . exhaust back pressure is low
[单选题]Low compression of diesel engine may result from ()A . a worn cylinderB . broken piston ringsC . any of A and BD . none of the above
[单选题]Poor combustion in a diesel engine can be caused by ().A . high compression pressureB . low intake air temperatureC . low exhaust pressureD . high scavenge air pressure
[单选题]The color of the exhaust from a diesel engine should be ()A . clearB . hazy light brownC . hazy light blueD . hazy light grey
[单选题]The exhaust gases for a new engine should be () when the engine operates under full load.A . smokyB . a little bit denseC . visibleD . almost invisible
[单选题]_____ the engines, the diesel engine is ____ used engine on boardA.Between / more commonlyB.Among / the most commonlyC.Between / not more commonlyD.Among / not the most commonly
[单选题]The heart of the diesel engine is the () where the fuel is burnt and the power developed.A . crankcaseB . cylinderC . scavenge boxD . pisto