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

Manoeuvring information can not be obtained from（）.

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

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

ECDIS must be able to perform all of the following EXCEPT（）.

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（）.

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

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

Fog is likely to occur when there is little difference between the dew point and the（）.

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