The primary duty of lube oil is to reduce _____ between the working parts of an engine.A.p

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

Which of the listed characteristics of lube oil are the most important to the engineer fro

The most common cause of lowering the crankcase lube oil flash point is _____.A.more water

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