单项选择题
A.excessively late injection timing for each cylinder B.incorrectly adjusted intake valve timing C.incorrectly adjusted fuel injector D.incorrectly adjusted intake valve clearance
Which of the diesel engine cylinder liners listed has i...
单项选择题Which of the diesel engine cylinder liners listed has internal cooling water passages?（）
A.Internally finned liner B.Externally finned liner C.Wet liner D.Integral water-jacket liner
Diesel engine lube oil can become contaminated as a res...
单项选择题Diesel engine lube oil can become contaminated as a result（）
A.the water produced during combustion B.the sulfur in the fuel C.unburned fuel oil D.all of the above
If the firing pressures in a diesel engine are high, al...
单项选择题If the firing pressures in a diesel engine are high, although the exhaust temperatures are normal, the cause may be（）
A.early injection timing B.worn orifices in the injection nozzles C.worn or scored cylinder liners D.using a fuel with too low of a cetane number
