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單項選擇題

The cooling water jacket is common to all the cylinders but there are often （） to ensure that each cylinder receives the right amount and flow of water.

A.dividing walls
B.divided walls
C.dividing liners
D.divided jackets

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單項選擇題

The cooling water is in direct contact with the outer surface of the liner as a result of which it is termed a （）.

A.water liner
B.wet liner
C.dry liner
D.drown liner

單項選擇題

The cooling of the piston is carried out by circulating （） across the underside of the crown and inside the ring belt or through specially shaped passages.

A.sea water
B.scavenging air
C.lubricating oil
D.fuel oil

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