The company should establish and maintain procedures to control all documents and date which are relevant to（）.

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

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

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

Manoeuvring information can not be obtained from（）.

Which of the following is not an operation mode of AIS?（）

The dew point temperature is（）.

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

Where would you find information about the time of high tide at a specific location on a particular day of the year?（）

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