You are running parallel to the coast and estimate that the current is against you.In plotting a running fix using bearings from the same object on the coast，the greatest safety margin from inshore dangers will result if what speed is used to determine（）.

In the absence of a route leading from seaward，the conventional direction of buoyage generally follows（）.

You are making tow.A loaded，open-hopper barge with independent tanks has placards，with alternating red and white quadrants，located at each side and end.You inspect the barge and find slight traces of water in the wing voids due to condensation.What（）.

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

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

Preferred channel marks are colored with（）．

You are drifting in a locale where there is no current．As a rule，your vessel will lie（）.

Which nautical charts are intended for coastwise navigation outside of outlying reefs and shoals（）.

Two vessels are approaching each other near head on. What action should be taken to avoid collision?（）.

You are sailing south on the Intracoastal Waterway（ICW）when you sight a green can buoy with a yellow square painted on it.Which of the following is TRUE（）.