Navigation Rules and Regulations Flashcards

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

Answer: The sailing vessel

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.

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

Answer: I am altering course to starboard

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.

A vessel overtaking another in a narrow channel must?

Answer: Keep out of the way of the vessel being overtaken

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.

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

Answer: White over red all-round lights

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.

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

Answer: A tricolor lantern at the masthead

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.

Under COLREGS, what action shall the stand-on vessel take when a collision cannot be avoided by the give-way vessel alone?

Answer: Take the best action to avoid collision

COLREGS Rule 17 allows the stand-on vessel, when collision cannot otherwise be avoided, to take whatever action will best aid in avoiding collision.