單項選擇題

Which of the following machinery space operations is required to be logged in the Oil Record Book?（）

A.Ballasting or cleaning of fuel oil tanks
B.Shifting suction of main fuel pump to reserve fuel oil tank
C.Changing out sprayer plates to adjust for steam demand
D.Daily inspection of engine room bilges

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單項選擇題

The distance between the bottom of the hull and the waterline is called （）.

A.tonnage
B.reserve buoyancy
C.draft
D.freeboard

單項選擇題

The lowest temperature at which the vapor formed from a liquid ignites and continues to burn steadily in the presence of an ignition source is called the（）.

A.flash point
B.fire point
C.upper explosive limit
D.lower explosive limit