How should you warm up a diesel engine that has not been run for some time? （）

[单选题]An automated diesel engine should normally shut down due to （）A . low lube oil temperatureB . high ambient air temperatureC . low tube oil pressureD . high exhaust system back pressure

[单选题]If you suspect a diesel engine is misfiring due to air leakage into the fuel system, you should begin looking for the leak at theA．fuel line connections to the cylinder injection valvesB．gasket surfaces of the fuel oil filtersC．discharge fittings of

[单选题]After an engine is started you should（）.A . increase engine speed to insure adequate flow of oil to all parts of the engineB . pay no attention unless there are unusual noises from the engineC . check operating pressures and temperatures，and check fo

[单选题]In a normally operating diesel engine, the main cause of lubricating oil contamination in the crankcase is a result of the （）.A . metal particles loosened by wearB . air when no air cleaners are usedC . condensation of water vaporsD . breakdown of th

[单选题]( )you decide to take up， you should try to make it a sucess.A.WheneverB.Ho

[单选题]There is no reason they should limit how much vitamin you take，( )they can

[单选题]There is no reason they should limit how much vitamin you take，( )they can

[单选题]There is no reason they should limit how much vitamin you take，( )they can

[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