Navigation Rules of the Road 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 Navigation Rules of the Road flashcards as text
What does the term 'in extremis' mean in the context of navigation rules?
Answer: A situation so dangerous that both vessels must take action to avoid collision
In extremis describes a situation so close and dangerous that both the give-way and stand-on vessels must act immediately to avoid collision.
Which of the following is NOT a factor in determining safe speed under the navigation rules?
Answer: The vessel's color
Rule 6 lists factors for safe speed including visibility, traffic density, and maneuverability — vessel color is not a factor.
A vessel displaying a red light over a white light at night is most likely engaged in which activity?
Answer: Fishing with gear extending more than 150 meters
A vessel fishing with gear extending more than 150 meters shows a red light over a white light in the direction of the gear.
Under what circumstance may a vessel operating in a traffic separation scheme cross a traffic lane?
Answer: Only when clearly necessary, and at as nearly a right angle as practicable
Rule 10 permits crossing a traffic lane only when necessary, and requires the vessel to cross as nearly as practicable at a right angle.
A power-driven vessel underway displays sidelights and a sternlight. When should it add a second masthead light?
Answer: When the vessel is 50 meters or more in length
A second masthead light (further aft and higher) is required for power-driven vessels 50 meters or more in length.
A sailing vessel of less than 7 meters that cannot display full sidelights and a sternlight must at minimum have ready:
Answer: An electric torch or lantern showing a white light
A sailing vessel under 7 meters that cannot fit regulation lights must have an electric torch or lighted lantern showing a white light to prevent collision.
In restricted visibility, a power-driven vessel making way through the water sounds which fog signal?
Answer: One prolonged blast at intervals of not more than 2 minutes
A power-driven vessel making way in restricted visibility sounds one prolonged blast at intervals of not more than two minutes.