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單項選擇題

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

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單項選擇題

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

單項選擇題

Which one of the followings may not be checked before engine starting?（）

A.tank level
B.Various filters
C.Drains
D.seawater temperature

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