Practice Test GeeksNSW Boat Licence Practice Test
← All GBL NSW Flashcard Decks

Navigation Lights and Signals Flashcards

7 cards from real GBL NSW practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Navigation Lights and Signals flashcards as text

  1. What colour is the port-side navigation light on a vessel?

    Answer: Red

    The port (left) side navigation light is always red, helping other mariners determine the direction a vessel is travelling.

  2. What colour is the starboard-side navigation light on a vessel?

    Answer: Green

    The starboard (right) side navigation light is green, the opposite of the red port light.

  3. When are navigation lights required to be displayed on a vessel?

    Answer: Between sunset and sunrise and in restricted visibility conditions

    Navigation lights must be displayed between sunset and sunrise and whenever visibility is restricted, regardless of speed or distance from shore.

  4. A vessel at anchor in an area used by other vessels must display what light at night?

    Answer: An all-round white anchor light

    A vessel at anchor must display an all-round white light visible from 360 degrees to alert other vessels of its stationary position.

  5. What arc of visibility does the white masthead light on a power-driven vessel cover?

    Answer: 225 degrees

    The masthead light covers a 225-degree arc, showing from dead ahead to 22.5 degrees abaft the beam on each side.

  6. At night you see only a red light approaching from ahead. What does this most likely indicate?

    Answer: You are seeing the vessel's port side and it may be on a crossing or head-on course

    Seeing only a red light means you are looking at the vessel's port (left) side, which could indicate it is crossing your path or heading towards you.

  7. What arc of visibility does the white stern light cover?

    Answer: 135 degrees

    The stern light covers a 135-degree arc showing aft from 22.5 degrees abaft the beam on each side, complementing the masthead light.

How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy

Sources & references

Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy

  1. service.nsw.gov.au — Eligibility · verified Oct 2026
  2. nsw.gov.au — Renewal, exam format, passing score, retake policy, fees, test delivery · verified Oct 2026