A water jacket is placed around the exhaust manifolds of propulsion diesel enginesto

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A water jacket is placed around the exhaust manifolds of propulsion diesel enginesto( ).

A.reduce heat radiation to the engine room

B.aid in preventing turbocharger overheating

C.condense and drain moisture from exhaust gases

D.dampen exhaust gas pulsations in the manifold

参考答案:

A解析：water jacket：水套;exhaust manifold：排气总管;heat radiation：热辐射;condense and drain moisture from exhaust gases:将水分从排气中冷凝析出;dampen exhaust gas pulsations in the manifold：缓解排气总管中的废气脉动译文：环绕排气总管的水套是为了减少对机舱的热辐射。

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