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

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

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

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

According to the relevant regulation, lifeboat should be powered by（）.

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

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

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

The dew point temperature is（）.

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