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單項(xiàng)選擇題

When are fore and aft draft readings required to be entered in the unofficial logbook of a ship? （）

A.Once a day
B.Once a week
C.Prior to getting underway
D.Only when entering waters of different density

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單項(xiàng)選擇題

When an azimuth of the Sun has been taken and the deviation of the standard magnetic compass computed，the watch officer should record the results（）.

A.in the vessel's Official Logbook
B.on the compass deviation card
C.in the compass deviation log
D.on a Napier diagram

單項(xiàng)選擇題

When a vessel is entering or leaving a port，a record of engine speeds is kept in the（）.

A.bell book
B.deck rough log
C.Official Logbook
D.engine rough log

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