In the Northern hemisphere northerly winds may cause temperature（）.

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

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

（）is where the crew eat their meals.

When the wave period and the apparent rolling period are the same（）.

（）is on the panel of radar.

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

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

What is it called when it is possible to ignite the vapour above the oil?（）

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