Online Boating Navigation Rules & Regulations Flashcards

When two power-driven vessels are crossing so as to involve risk of collision, which vessel must give way?

Answer: The vessel on the port side of the other

The vessel that has the other on its starboard side is the give-way vessel and must yield.

What does a vessel's all-round white light indicate?

Answer: It is visible from all directions and marks vessels under 39.4 feet when underway

An all-round white light is visible through 360 degrees and is used by small vessels as a combined masthead/stern light option.

What is the minimum sound signal required for a vessel over 12 meters when operating in restricted visibility?

Answer: One prolonged blast every 2 minutes

A power-driven vessel making way in restricted visibility must sound one prolonged blast at intervals of not more than 2 minutes.

In the US Inland Rules, a flashing blue light is used exclusively by which type of vessel?

Answer: Law enforcement vessels

Under US Inland Rules, law enforcement vessels may display a flashing blue light when engaged in law enforcement activities.

Which side of a channel should a recreational boater keep to when traveling upstream (returning from sea)?

Answer: The right side (starboard)

When traveling upstream or returning from sea, boaters should keep to the right (starboard) side of the channel.

What action must the stand-on vessel take if a collision cannot be avoided by the give-way vessel's actions alone?

Answer: Take the most effective action to avoid collision

If collision is imminent and the give-way vessel has not acted, the stand-on vessel must take whatever action best avoids the collision.

A vessel displaying a black cylinder shape by day is indicating what condition?

Answer: The vessel is anchored

A black cylinder displayed by day is the dayshape signal for a vessel at anchor.