单项选择题
A.injection pump plungers stuck or worn B.low compression C.solenoid stuck open D.fuel tank too full
Cooling water pumps driven by direct reversing diesel e...
单项选择题Cooling water pumps driven by direct reversing diesel engines are usually of the straight impeller vane type pump with a concentric housing to（）
A.facilitate bi-directional operation B.provide the greatest pump efficiency C.prevent pump clogging from marine growth D.prevent cavitation at the pump outlet
In a diesel engine cooling system, the high temperature...
单项选择题In a diesel engine cooling system, the high temperature alarm contact maker will be activated on excessively high water discharge temperature from the （）
A.raw water pump discharge B.expansion tank outlet C.cooling water heat exchanger D.outlet engine jacket water outlet
In a diesel engine, a cylinder liner should be replaced...
In a diesel engine, a cylinder liner should be replaced if it is （） Ⅰ.Scuffed Ⅱ.Scored
A.Ⅰ only is correct B.Ⅱ only is correct C.both Ⅰ and Ⅱ are correct D.neither Ⅰ or Ⅱ are correct
