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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3.單項選擇題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

4.單項選擇題The cooler as the liquid becomes, ().

A.the faster it will evaporate
B.the slower it will condense
C.the slower it will evaporate
D.the faster it will flow