When underway and proceeding ahead，as the speed increases，the pivot point tends to（）.

Which instrument is used to predict the approach of a low pressure system（）.

When steering a tow downstream around the shape of a sand bar，and staying on the proper side of the buoys，an operator should be cautious of（）.

You are entering an east coast port and see a buoy with a yellow triangle painted on it.This indicates（）.

When liquid is free to move transversely in a tank，the effect is called（）.

Your ship is in shallow water and the bow rides up on its bow wave while the stern sinks into a depression of its transverse wave system.What is this called（）.

In regions where ice conditions prevail in the winter，（）.

Preferred channel marks are colored with（）．

The Light List shows a lighted aid to navigation on the left bank. This means that the light can be seen on the starboard side of a vessel（）.

A vessel shall not（）.