单项选择题 The sludge tank installed in the diesel engine room is used to collect（） Ⅰ.sludge from the fuel oil settling tanks ad centrifuge Ⅱ.water that has been collected in the settling tank

单项选择题 A supercharged diesel engine when compared to a similar naturally aspirated diesel engine, will develop an increase in （）

单项选择题 The direct acting mechanical governor used with some small diesel engines, controls fuel flow to the engine by（）