A dirty diesel engine oil filter element can best be detected by ______.A.visual inspectio

Fresh water is used for the cooling of cylinder jackets and () of the marine diesel engine

A.cylinder covers

B.lubricating space

C.crosshead

Cracking of a diesel piston crown can result from_______________.

A.Excessive piston to liner clearance

B.The underside of the piston crown being excessively dirty lowering the rate of heat transfer

C.Faulty nozzle spray

D.All of the above

A.lube oil pump suction line

B.lube oil pump discharge line

C.bottom of the lube oil sump

D.outlet from the lube oil header

Proper filtering and straining of diesel fuel is important because the .

A.fuel oil pump will over-speed if dirt is not removed

B.fuel oil transfer pumps cannot tolerate small amounts of grit in the oil

C.fuel injectors may be damaged by foreign particles in the fuel oil dirty

D.fuel will clog the intake air filter

A.a dirty lube oil strainer

B.internal water leaks

C.an oil suction line restriction

D.excessive wears of the cooling water pump

A.Reduce engine speed to idle before removing the filter

B.Soak the dirty filter in kerosene only

C.Blow out the air inlet with compressed air

D.Cover the air inlet after removing the filter

A.to prevent the fuel system from becoming air-hound

B.to prevent the fuel system becoming clogged with dirty particles

C.both of the above

D.to prevent the lubricating oil from leaking out of the filter element

A．The high temperatures required for its use.

B．The lack of trained environmental engineers.

C．The opposition of automobile manufacturers.

D．The high cost of materials used in its production.

A.engineer

B.hire

C.retire

A、show variable like'storage_engine%'

B、show variables like'storage_engine%'

C、show engins

D、show engin