Which of the following is not a form of precipitation?（）

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

（）is where the crew eat their meals.

Manoeuvring information can not be obtained from（）.

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

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

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

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

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

What is a CORRECT reply to a pilot’s request, How’s your heading?（）