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

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

（）is on the panel of radar.

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

Which of the following is not an operation mode of AIS?（）

The helm command PORT TWENTY means（）.

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

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（）.

Manoeuvring information can not be obtained from（）.