A . internal crankshaft passages
B . immersion in oil
C . splash lubrication
D . injection lubricatio
[单选题]The crank chamber oil ().A . can be recoveredB . is only supplied to cylindersC . only feeds the main bearingD . is a kind of detergent
[单选题]The function of a lubricating oil is () to lubricate the running surface () to carry away a great deal of heat.A . not;butB . neither;norC . either;orD . not only;but also
[单选题]Oil is supplied to the cylinder wall and () by means of mechanical lubricators.A . the cylinder coverB . the piston ringsC . the piston crownD . the piston skirt
[单选题]Loss of lubricating oil pressure to the main propulsion diesel engine will actuate a/an _____.A.over-speed tripB.audible/visual alarmC.the ships/boats general alarmD.reserve oil storage tank
[单选题]There should be a lubricating oil () between the main beatings and the crankshaft.A . filmB . capC . lacquerD . shell
[单选题]The remaining oil in the lubricating pipes and ducts should be blown out with ().A . atmosphereB . the fresh waterC . compressed airD . chemical compound
[单选题]The selection of a lubricating oil depends to a great extent on the operating conditions,().A . the type of coolantB . the design of the engineC . the type of fuel to be burnedD . B and C
[单选题]The amount of lubricating oil in the drain tank should be checked by ().A . measuringB . sounding rodC . meteringD . weighting
[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]In addition to lubricating, cylinder oil assists in forming a gas seal and contains () which clean the cylinder liner.A . additivesB . waterC . greaseD . acid solutio