Your vessel is docking, but not yet alongside. Which line will be the most useful when maneuvering the vessel alongside the pier?（）.

Shipboard Emergency Drills must be carried out at least（）on board cargo ship.

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

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

The mean draft of a ship is the draft（）.

The circulation around a low pressure center in the Northern Hemisphere is（）.

A tide is called diurnal when（）.

Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.

（）is the act of allocating space to containers on board of a container ship in the order of the discharge ports.

It is dangerous for vessels without the operational radar（）the estuary.