Navigation Lights and Sound Signals Flashcards

What color is the port navigation light on a pleasure craft?

Answer: Red

The port (left) side navigation light is red, remembered by the phrase 'port wine is red.'

On which side of a vessel is the green navigation light displayed?

Answer: Starboard (right) side

The green light is displayed on the starboard (right) side of the vessel when facing forward.

What color is the stern light required on a pleasure craft?

Answer: White

The stern light must be white and is positioned at the rear of the vessel to be visible from astern.

When are navigation lights required to be displayed on a pleasure craft?

Answer: Between sunset and sunrise and during all periods of restricted visibility

Navigation lights must be displayed from sunset to sunrise and during any period of restricted visibility, regardless of the time of day.

What arc of visibility does each sidelight (port and starboard) cover?

Answer: 112.5 degrees

Each sidelight covers an arc of 112.5 degrees, from dead ahead to 22.5 degrees abaft the beam on its respective side.

A power-driven pleasure craft underway at night must display which combination of lights?

Answer: Masthead light, sidelights, and stern light

A power-driven vessel underway must display a masthead light, port and starboard sidelights, and a white stern light.

What is a 'combined lantern' as permitted on small pleasure craft under 20 meters?

Answer: A single fitting that displays both the red port and green starboard lights together

A combined lantern is a single fixture displaying both the red (port) and green (starboard) sidelights, permitted on vessels under 20 meters in length.