单选题A water jacket is placed around the exhaust manifolds of propulsion diesel engines to（）Areduce heat radiation to the engine roomBaid in preventing turbocharger overheatingCcondense and drain moisture from exhaust gasesDdampen exhaust gas pulsations in the manifold
单选题
A water jacket is placed around the exhaust manifolds of propulsion diesel engines to（）
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
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