A tide is called diurnal when（）.

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

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

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（）.

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

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

The dew point temperature is（）.

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

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?（）.