AB Rules of the Road & Maritime Regulations 3 — Questions and Answers
Question 1: What does a vessel display when she is constrained by her draft?
- Three red lights in a vertical line (Correct answer)
- A black cylinder
- A red flag with a white diagonal stripe
- Two black balls and a diamond
Correct answer: Three red lights in a vertical line
Rule 28 states a vessel constrained by her draft may exhibit three all-around red lights in a vertical line in addition to her normal running lights.
Question 2: In a narrow channel, a vessel proceeding along the channel must keep to which side?
- The port side of the channel
- The starboard side of the channel (Correct answer)
- The center of the channel
- Whichever side gives more depth
Correct answer: The starboard side of the channel
Rule 9 requires a vessel proceeding along the course of a narrow channel to keep as near to the outer limit of the channel on her starboard side as is safe and practicable.
Question 3: What signal must a vessel sound before making a bend where other vessels may be obscured?
- Two short blasts
- Three short blasts
- One prolonged blast (Correct answer)
- One long and one short blast
Correct answer: One prolonged blast
Rule 9(f) requires a vessel nearing a bend where another vessel may be obscured to sound one prolonged blast as a warning signal.
Question 4: A white light visible all around at a range of two miles is displayed by which type of vessel?
- A power-driven vessel over 50 meters
- A vessel at anchor under 50 meters in length
- A vessel under 12 meters at anchor (Correct answer)
- A vessel not under command
Correct answer: A vessel under 12 meters at anchor
Rule 30 permits a vessel under 12 meters at anchor to show a single all-around white light instead of the forward and after anchor lights.
Question 5: Which vessel has right of way over all others in a traffic separation scheme?
- A vessel using the traffic lane
- A vessel crossing the traffic lane
- A vessel not under command (Correct answer)
- A vessel constrained by draft
Correct answer: A vessel not under command
Under Rule 18, a vessel not under command is exempt from the give-way hierarchy and other vessels must keep clear of her.
Question 6: When overtaking another vessel in a narrow channel, what signal is given to indicate overtaking on the other vessel's starboard side?
- Two prolonged blasts followed by one short blast (Correct answer)
- Two prolonged blasts followed by two short blasts
- One short blast
- One prolonged and one short blast
Correct answer: Two prolonged blasts followed by one short blast
Rule 9(e) specifies two prolonged blasts followed by one short blast to indicate the intention to overtake on the other vessel's starboard side.
Question 7: Under Rule 10, vessels using traffic separation schemes shall NOT cross a separation zone except in what circumstance?
- When proceeding to or from a port
- In an emergency to avoid immediate danger (Correct answer)
- When the traffic lane is congested
- When directed by the Coast Guard
Correct answer: In an emergency to avoid immediate danger
Rule 10(c) states a vessel shall not enter a separation zone except in cases of emergency or to avoid immediate danger.
AB Rules of the Road & Maritime Regulations 3
What does a vessel display when she is constrained by her draft?