A tide is called diurnal when（）.

ECDIS must be able to perform all of the following EXCEPT（）.

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

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

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

（）is the act of allocating space to containers on board of a container ship in the order of the discharge ports.

Manoeuvring information can not be obtained from（）.

It is dangerous for vessels without the operational radar（）the estuary.

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

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