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單項選擇題

When oily ballast has been pumped overboard，an entry must be made in the（）.

A.Oil Record Book
B.Official Logbook
C.deck rough log
D.engine rough log

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單項選擇題

When oil is discharged overboard，an entry is required in the（）.

A.engine rough log
B.Oil Record Book
C.Official Logbook
D.deck rough log

單項選擇題

When must the Master of a vessel log the position of load line marks in relation to the surface of the water in the Official Logbook?（）

A.Once a day
B.At the change of every watch
C.Only when in fresh or brackish water
D.Prior to getting underway

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