单选题If the jacket water temperature in an auxiliary diesel engine cooling system is lower than normal, the probable cause is （）Aair binding of the engine cooling systemBa cracked water cooled exhaust manifoldCblockage in the heat exchangerDfaulty operation of the thermostat
单选题
If the jacket water temperature in an auxiliary diesel engine cooling system is lower than normal, the probable cause is （）
A
air binding of the engine cooling system
B
a cracked water cooled exhaust manifold
C
blockage in the heat exchanger
D
faulty operation of the thermostat
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相关考题：
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