单项选择题
A.starting air pressure
B.scavenge air pressure
C.over-speed trip
D.banjo oiler line
单项选择题 When attempting to start a main propulsion diesel engine, the engine, the engine turns at the proper speed but will not startYou should check the（）
单项选择题 The speed of the turbocharger for a four-stroke/cycle diesel engine driving a generator at constant speed depends on the （）
单项选择题 The operating speed of a turbocharger is directly dependent upon（）