Full details of all lights and fog signals are shown on（）.

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

What is a CORRECT reply to a pilot’s request, How’s your heading?（）

Which of the following is not a form of precipitation?（）

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

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

Manoeuvring information can not be obtained from（）.

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

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

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