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

Berthing means bringing a vessel to her berth until（）.

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

According to the relevant regulation, lifeboat should be powered by（）.

The force resulting from the earth’s rotation that causes winds to deflect to the right in the Northern Hemisphere and to the left in the Southern Hemisphere is called（）.

Manoeuvring information can not be obtained from（）.

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

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

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

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