_____ pistons have low inertia and high coefficient of thermal expansion.A.Cast ironB.Cast

_______ diesel engines generally have two systems of lubrication: a total loss system feeding and a circulating system lubricating the running gear and cooling the pistons.

Aluminum pistons have _____ coefficient of thermal expansion compared with those of cast iron.

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

In the 2nd study, students with low GPAs did NOT complain of______.A．having trouble fallin

Ring groove inserts are occasionally used on aluminum alloy piston to_______.A.reduce the

Either a low injection pressure or a leakage of piston rings is able to lead _____.A.a hig