单项选择题
A.propeller B.flying wheel C.main engine D.crankshaft
Which of the followings will affect the spray of fuel o...
单项选择题Which of the followings will affect the spray of fuel oil?（）
A.coke deposits B.cylinder water temperature C.asphalt in fuel oil D.lub oil
When the direction handle of telegraph is moved, the re...
单项选择题When the direction handle of telegraph is moved, the relative position of camshaft and crankshaft will be（）
A.changed accordingly B.unchanged C.positioned ahead D.positioned astern
Which one of the followings may not be checked before e...
单项选择题Which one of the followings may not be checked before engine starting?（）
A.tank level B.Various filters C.Drains D.seawater temperature
