PCOC Navigation Lights and Sound Signals 1 — Questions and Answers
Question 1: What color is the port navigation light on a pleasure craft?
- Red (Correct answer)
- Green
- White
- Yellow
Correct answer: Red
The port (left) side navigation light is red, remembered by the phrase 'port wine is red.'
Question 2: On which side of a vessel is the green navigation light displayed?
- Port (left) side
- Starboard (right) side (Correct answer)
- Bow (front)
- Stern (rear)
Correct answer: Starboard (right) side
The green light is displayed on the starboard (right) side of the vessel when facing forward.
Question 3: What color is the stern light required on a pleasure craft?
- Red
- Green
- White (Correct answer)
- Blue
Correct answer: White
The stern light must be white and is positioned at the rear of the vessel to be visible from astern.
Question 4: When are navigation lights required to be displayed on a pleasure craft?
- Only during periods of fog or rain
- Between sunset and sunrise and during all periods of restricted visibility (Correct answer)
- Only when traveling at speeds above 10 knots
- Only when operating in open ocean waters
Correct 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.
Question 5: What arc of visibility does each sidelight (port and starboard) cover?
- 90 degrees
- 112.5 degrees (Correct answer)
- 135 degrees
- 180 degrees
Correct 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.
Question 6: A power-driven pleasure craft underway at night must display which combination of lights?
- Sidelights only
- Masthead light and sidelights only
- Masthead light, sidelights, and stern light (Correct answer)
- All-round white light only
Correct 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.
Question 7: What is a 'combined lantern' as permitted on small pleasure craft under 20 meters?
- A single white light serving as both masthead and stern light
- A single fitting that displays both the red port and green starboard lights together (Correct answer)
- A light that automatically changes color based on vessel heading
- An emergency all-round flashing light
Correct 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.
PCOC Navigation Lights and Sound Signals 1
What color is the port navigation light on a pleasure craft?