The cooling water jacket is common to all the cylinders but

The cooling liquid used for the cylinder may be referred to as _____.

A.jacket water

B.make-up water

C.boiler water

D.flushing water

Indirect cooling of fuel injector nozzle holders for diesel engines is accomplished primarily by

A.heat conduction into the injected fuel oil

B.heat conduction into the water jacket wall

C.water circulation through passages in the holder

D.fuel oil circulation through passages m the holder

What is head tank in the closed cooling water system used for?

A.for the release of air from the cooling water

B.providing expansion room for heated cooling water

C.a place for implementing water and water treatment agent

D.all of the above

The most serious effect of air trapped in a diesel engine jacket water cooling system is that it ______．

A.Causes colloid suspension in the cooling water

B.Reduces the capability of the lubrication system

C.Can form pockets which block the flow of coolant through the system

D.Leads to the scuffing of cylinder walls

Piston cooling fins are located

A.atop the piston crown

B.beneath the piston crown

C.at the base of the piston skirt

D.inside the cylinder liner cooling water jacket

Why is it necessary to have routine testing of the cooling water?

A.To ensure that the proper residuals of treatment chemicals, as specified, are maintained all time

B.To trace leakage in the cooling water system

C.It is not necessary

D.To detect the presence of contaminants in the water that may be injurious to the cooling system

The space between cylinder liner and jacket is called _____.

A.the cooling water

B.the circulating water

C.the cooler

D.the cooling water space