单项选择题
A.overheated injection pumps
B.water condensation in the cylinders
C.fuel dilution of the lube oil
D.air in the fuel system
单项选择题 In a flash type evaporator, the brine overboard pump is vented directly to the（）
单项选择题 In the two stage flash distilling plant, which of the pumps listed is vented to the shell of the second stage in order to remove vapor from the pump suction?（）
单项选择题 The purpose of an oil mist detector in a main propulsion diesel engine is to warn of （）