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（）.

Manoeuvring information can not be obtained from（）.

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

A tide is called diurnal when（）.

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

The dew point temperature is（）.

Shipboard Emergency Drills must be carried out at least（）on board cargo ship.

Bales close to the deckhead should be covered to prevent（）.

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

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