（）is halfway between the forward and after perpendiculars and is reference point for vessel construction.

Bales close to the deckhead should be covered to prevent（）.

The loading of the ship must be done in accordance with（）.

How long are you prohibited to consume alcohol prior to serving as a member of a watch?（）

Which of the following shall not the officers in charge of the navigational watch do?（）

When steering by autopilot,how often should the steering be checked?（）

The dew point temperature is（）.

Before any loading takes place any signs of the previous cargo should do（）.

（）is where the crew eat their meals.

The helm command PORT TWENTY means（）.