AB Rules of the Road & Maritime Regulations 2 — Questions and Answers
Question 1: Under the COLREGS, what is the minimum sound signal a vessel underway in restricted visibility must make every two minutes?
- One prolonged blast (Correct answer)
- Two prolonged blasts
- Three short blasts
- One prolonged and two short blasts
Correct answer: One prolonged blast
Rule 35 requires a power-driven vessel making way in restricted visibility to sound one prolonged blast at intervals of not more than two minutes.
Question 2: Which vessel is considered 'restricted in her ability to maneuver' under the COLREGS?
- A vessel towing a barge
- A vessel laying an underwater cable (Correct answer)
- A vessel with mechanical failure
- A vessel constrained by draft
Correct answer: A vessel laying an underwater cable
A vessel engaged in laying or picking up a navigational mark, cable, or pipeline is restricted in her ability to maneuver under Rule 3(g).
Question 3: A vessel displaying two black balls in a vertical line is indicating what condition?
- Vessel not under command (Correct answer)
- Vessel at anchor
- Vessel aground
- Vessel engaged in diving operations
Correct answer: Vessel not under command
Rule 27 specifies that a vessel not under command displays two black balls in a vertical line where they can best be seen.
Question 4: When two power-driven vessels are in a crossing situation, which vessel must give way?
- The vessel on the starboard side of the other
- The vessel on the port side of the other (Correct answer)
- The vessel that is larger
- The vessel traveling at higher speed
Correct answer: The vessel on the port side of the other
Rule 15 states the vessel that has the other on her own starboard side shall keep out of the way; conversely, the vessel on the port side of the other gives way.
Question 5: What action must the stand-on vessel take when it becomes apparent that the give-way vessel is not taking appropriate action?
- Immediately increase speed
- Take action to avoid collision by her maneuver alone (Correct answer)
- Sound five short blasts and maintain course
- Anchor immediately
Correct answer: Take action to avoid collision by her maneuver alone
Rule 17(b) states that when a collision cannot be avoided by the give-way vessel alone, the stand-on vessel shall take action to avoid collision.
Question 6: At night, a vessel engaged in fishing and making way shows which lights in addition to its sidelights?
- Red over white all-around lights (Correct answer)
- Green over white all-around lights
- White over red all-around lights
- Two white all-around lights in a vertical line
Correct answer: Red over white all-around lights
Rule 26 requires a vessel engaged in fishing to show an all-around red light over an all-around white light plus sidelights when making way.
Question 7: Which COLREGS rule addresses 'Safe Speed'?
- Rule 5
- Rule 6 (Correct answer)
- Rule 7
- Rule 8
Correct answer: Rule 6
Rule 6 requires every vessel to proceed at a safe speed at all times so that she can take proper and effective action to avoid collision.
AB Rules of the Road & Maritime Regulations 2
Under the COLREGS, what is the minimum sound signal a vessel underway in restricted visibility must make every two minutes?