The lower section of a piston is called the ______.A.landB.skirtC.crownD.plate

The main moving parts of a diesel engine consist of the _____ and the pistons.

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Which of the following characteristic of lube oil helps to reduce the amount of deposits in the piston ring belt during the combustion process in a diesel engine？

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Which of the listed bearing types is an example of a solid bearing？A.Piston wrist pin bush

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During which of the listed piston stroke of a four－stroke／cycle diesel engine, is the pist

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The lower end of each piston rod is reduced in diameter to fit a bore in _____.A.the cross

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As to the piston cooling, of the following, which statement is not true？A.Because the pist

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Which of the following is NOT mentioned as a consequence of the drought？A．Lower crop produ

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