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

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（）.

Before any loading takes place any signs of the previous cargo should do（）.

Which wind results from a land mass cooling more quickly at night than an adjacent water area?（）

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

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

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

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

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

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