A . sufficient quantity; measured
B . measured quantity;sufficient
C . excessive quantity;sufficient
D . the less quantity the better;the more the better
[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
[单选题]The rate of cylinder lubricating oil metered to each cylinder of a large low-speed main propulsion diesel engine is ()A . the same, whether at sea, or during maneuveringB . adjusted during each hour of operation while at constant RPMC . higher at sea
[单选题]The cylinder head, cylinder liner and () form the combustion chamber.A . frameB . pistonC . crankcaseD . explosion plate
[单选题]() is used for cylinder and cylinder head, the salt water is used for cooling the lubricating oil, the fresh water in the coolers and the charging air in the air cooler.A . The fuel oilB . The lube oilC . The sea waterD . The fresh water
[单选题]Cracks in cylinder and cylinder covers may () from unequal heating.A . makeB . causeC . resultD . produce
[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]With respect to the flow of lubricating oil through a diesel engine, the lube oil coolers are located after filters in order to ().A . allow filtration of less viscous oilB . decrease the pressure drop across the filterC . improve overall filtrationD
[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]The ability of lubricating oils to resist viscosity changes during temperature changes is indicated by the ____.A.American PetroleumB.Institute number viscosity index numberC.Seconds Saybolt Furol numberD.Seconds Saybolt Universal number
[单选题]There should be a lubricating oil () between the main beatings and the crankshaft.A . filmB . capC . lacquerD . shell