Understanding Waterways & Navigational Aids Flashcards
7 cards from real Boating Certification Test practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Understanding Waterways & Navigational Aids flashcards as text
When navigating a narrow channel, which side of the channel should a power-driven vessel keep to?
Answer: The right (starboard) side
Rule 9 of the Navigation Rules requires vessels in narrow channels to keep to the starboard (right) side when practicable.
What does a mooring buoy look like and what is it used for?
Answer: White buoy with a blue horizontal band used for tying up a vessel
Mooring buoys are white with a blue horizontal band and provide a secure point to tie up a vessel without dropping anchor.
On a nautical chart, what does a number inside a circle with a dashed outline represent?
Answer: A recommended anchorage area
A circle with a dashed outline on a chart typically marks a recommended or designated anchorage area.
What does a flashing (Fl) light characteristic on a buoy mean?
Answer: The light is off more than it is on
A flashing (Fl) light has a single flash repeated at regular intervals where the period of darkness is longer than the period of light.
What is the significance of the '3 Second' rule on a buoy light chart notation like 'Fl R 3s'?
Answer: The light completes one full on-off cycle every 3 seconds
The number followed by 's' in a light characteristic describes the period — the time for one complete cycle of the light pattern.
You spot a white buoy with an orange square containing black text. What should you do?
Answer: Read the information displayed on the marker
An orange square on a white marker is an informational marker displaying directions, distances, or local rules — you should read and follow the information.
Which buoy marks the seaward end of a dredged channel and is usually the first mark a vessel encounters when entering from offshore?
Answer: A safe water mark (fairway buoy)
Safe water marks (red-and-white vertically striped) mark the start of a dredged channel or fairway from seaward and indicate navigable water on all sides.