Going upstream, on which side do you keep a green can buoy?
PCOC Boating Test: Lateral buoys and daybeacons
Port and starboard hand buoys and the upstream rule, bifurcation, fairway and isolated danger buoys, and port, starboard and junction daybeacons.
- No sign-up
- Every answer explained
- Independent · not a government site
- 14 questions
- Topic drill
Study reference: Safe Boating Guide (TP 511E, 03/2026), Ch. Reference cards — Lateral buoys and standard daybeacons, p. 64
All 14 questions in this test
Every question and its answer choices. The correct answers and explanations appear when you take the test above.
Going upstream, on which side do you keep a green can buoy?
- On either side
- On your port (left) side
- Directly astern
- On your starboard (right) side
Heading upstream, you see a port hand daybeacon on a post. Where do you keep it?
- On either side
- On your port (left) side
- On your starboard (right) side
- Directly ahead
What does a fairway buoy mark?
- A swimming area
- A no-wake zone
- An isolated rock or wreck in the channel
- Safe water, such as a channel centre
You are heading upstream, returning from open water. On which side should you keep a red buoy?
- On either side
- On your port (left) side
- Directly ahead of you
- On your starboard (right) side
On which side should you normally keep a fairway buoy?
- On your port (left) side, either direction
- Always directly ahead
- Never pass it; go around
- On your starboard side going upstream
You see a red spar buoy while going upstream. What does it tell you?
- Keep it on your starboard (right) side
- No anchoring nearby
- A diver is below
- Keep it on your port (left) side
What colour and shape is a typical starboard hand buoy?
- White with orange bands
- Red and conical
- Yellow and spherical
- Green and can-shaped
What shape is a typical green port hand buoy?
- A diamond
- A cone
- A can
- A sphere
Going upstream, you reach a bifurcation buoy whose top band is red. To stay in the main channel, how do you pass it?
- Stop and wait for a signal
- Keep it on your starboard (right) side
- Keep it on your port (left) side
- Pass it on either side
Heading upstream, you want to take the channel to your right at a junction daybeacon marked 'preferred channel to right'. How do you pass it?
- Keep it on your port (left) side
- Pass directly over it
- Keep it on your starboard (right) side
- Stop and sound one blast
Going upstream, you want the left-hand channel at a junction daybeacon marked 'preferred channel to left'. How do you pass it?
- Keep it on your port (left) side
- Turn back downstream
- Keep it on your starboard (right) side
- Pass it on either side
What does an isolated danger buoy mark?
- A channel junction
- A small danger you can pass on any side
- A safe anchorage
- The outer edge of a supervised swimming area
You are heading downstream toward open water and see a red conical buoy. On which side should it be?
- On either side
- On your port (left) side
- On your starboard (right) side
- Directly astern
What do the coloured bands on a red and green bifurcation buoy tell you?
- The bottom band shows the deeper side
- The buoy must be avoided
- The top band shows the main channel
- It marks a swimming area
Lateral buoys and daybeacons: key rules to remember
Our summary of what the official handbook says on this topic, in our own words. Read it before or after the practice questions above, then check the original chapter. Read the official chapter ↗
Lateral buoys (reference card TP 14541)
- Port hand buoys are green: green can, green pillar, green spar. Keep on your port (left) side when going upstream.
- Starboard hand buoys are red: red conical, red pillar, red spar. Keep on your starboard (right) side when going upstream.
- Heading downstream the sides reverse (the rule is stated for the upstream direction).
- Bifurcation buoy (red and green bands): may be passed on either side when going upstream; the colour of the top band shows the main or preferred channel (e.g. red top: keep it on your starboard side).
- Fairway buoy: marks safe water at landfalls, channel entrances or channel centres; may be passed on either side but should be kept to port in either direction.
- Isolated danger buoy: marks a small isolated danger (small shoal, wreck) with navigable water all around; check the chart for size and depth.
Standard daybeacons
- Port hand daybeacon: going upstream, keep it on your port (left) side.
- Starboard hand daybeacon: going upstream, keep it on your starboard (right) side.
- Junction daybeacon, preferred channel to the right: the channel divides; to take the right-hand channel keep it on your port (left) side.
- Junction daybeacon, preferred channel to the left: to take the left-hand channel keep it on your starboard (right) side.
Study the Lateral buoys and daybeacons rules as flashcards →
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