Friction, engine wear and oil consumption in a diesel engine are directly related to the （）.

[单选题]“Friction”和“Wear”分别是（）A.摩擦和磨损；B.磨损和摩擦

[单选题]“Friction”和“Wear”分别是（）A.摩擦和磨损；B.磨损和摩擦

[单选题]Lubricating oil for an engine is stored at the bottom of the （）, known as the sump or in a drain tank located beneath the engine.A . sea cheatB . air receiverC . crankcaseD . water box

[单选题]The fuel oil system for a diesel engine can be considered in two parts--the fuel supply and the （） systems.A . fuel treatmentB . fuel combustionC . fuel injectionD . fuel separating

[单选题]For a main diesel engine the lube oil in the bearings is drawn from （）, usually located in the bedplate.A . a gravity tankB . a sumpC . a vesselD . a bottle

[单选题]The oil index of main engine should be controlled to prevent it from ____ in heavy weather.A．over heatB．over speedC．over pressureD．over worn

[单选题]A dirty diesel engine oil filter element can best be detected by （）.A . visual inspection of the elementsB . the pressure drop across the filterC . high lube oil sump temperatureD . decrease in oil viscosity from the filter

[单选题]In a diesel engine lube oil system, which of the following parts should be lubricated first?（）A . Camshaft beatingsB . Main bearingsC . Piston crownsD . Cylinder wall

[单选题]Friction developing between the moving parts of a governor, governor linkage and control valve will cause the governor to （）.A . react with insufficient speed droopB . fail to react to small speed changesC . have excessive sensitivity to small speed

[单选题]C．They wear the latest fashions with the most up-to-date accessorise(配饰)。Yet these are ginrls in their teens or twenties but women in their sixties and seventies.A gengration which would once only wear old-fashioned clothes is now faouring the same h