USCG Navigation Rules and Regulations 3

Question 1

Which vessel has the right of way when a sailing vessel and a power-driven vessel are crossing?

Accepted Answer

The sailing vessel

Answer

Under COLREGS Rule 18, a power-driven vessel underway shall keep out of the way of a sailing vessel, making sailing vessels the stand-on vessel in most crossing situations.

Question 2

What does one short blast on a whistle mean under the Inland Rules?

Accepted Answer

I am altering course to starboard

Answer

Under Inland Rule 34, one short blast means 'I intend to alter my course to starboard,' and the other vessel must respond with the same signal if in agreement.

Question 3

A vessel overtaking another in a narrow channel must?

Accepted Answer

Keep out of the way of the vessel being overtaken

Answer

COLREGS Rule 13 states that any vessel overtaking another shall keep out of the way of the vessel being overtaken regardless of how the overtaking develops.

Question 4

What light is shown by a vessel engaged in pilotage duty?

Accepted Answer

White over red all-round lights

Answer

COLREGS Rule 29 requires a pilot vessel on duty to show an all-round white light over an all-round red light at the masthead.

Question 5

A power-driven vessel less than 50 meters may not show which light combination?

Accepted Answer

A tricolor lantern at the masthead

Answer

A tricolor lantern combining sidelights and sternlight at the masthead is permitted only for sailing vessels under COLREGS Rule 25, not for power-driven vessels.

USCG - United States Coast Guard Practice Test

USCG - United States Coast Guard Practice Test

USCG Navigation Rules and Regulations 3