Excessive lube oil consumption can result from worn or broken ______________.A.piston ring

These acid residues must be prevented from entering the crankcase, otherwise the lube oil would be .

In a diesel engine lube oil system, which of the following parts should be lubricated firs

One of the main functions of lube.oil is to remove （) from oil cooled pistonsA.powerB.fri

The construction of the main propulsion engine lube oil sump should .A.have no plating joi

Fuel oil contamination of an auxiliary diesel engine lube oil can result in ___________.A.

Which harmful consequence may be the result of lube oil sludge accumulation？ .A.Clogged oi