Colreg 1

A detailed illustration of a powerboat navigating through a foggy sea with visible navigation lights and radar in action, showcasing maritime safety and navigational rules

Navigational Rules Quiz

Test your knowledge of the International Regulations for Preventing Collisions at Sea (COLREGS) in this comprehensive quiz. Designed for maritime professionals and enthusiasts alike, this quiz covers essential rules, regulations, and safe navigation practices.

Join now to challenge yourself and improve your understanding of maritime navigational safety with questions such as:

  • What actions should a vessel take to avoid a collision?
  • What are the requirements for proper navigation lights?
  • How do special rules by authorities affect maritime navigation?
52 Questions13 MinutesCreated by SailingWave417
1. The phrase ‘special rules made by an appropriate authority’ as used in the Rules refers to
The International Rules of the Road (COLREGS)
Navigation and pilot rules for United States only
Navigation and pilot rules established by the governments of other nations
Answers b and c.
2. Every vessel shall at all times
Maintain a listening watch on VHF Channel 13
Maintain a proper look-out by sight and hearing as well as by all available appropriate means
Show the proper lights for a vessel of her class
Sound signals to indicate her course and speed changes
3. Which of the following is a requirement for any action taken to avoid collision?
When in sight of another vessel, any action taken must be accompanied by sound signals.
The action taken must include changing the speed of the vessel.
The action must be positive and made in ample time
All of the above.
4. A vessel shall
Not cross a narrow channel or fairway and impede a vessel which, can safely navigate only within the channel
Avoid crossing traffic lanes in an established traffic separation scheme
Cross traffic lanes in a traffic separation scheme as nearly as practicable at right angles to the general flow of traffic if obliged to do so
All of the above.
5. Which of the following statement concerning an overtaking situation is correct?
The overtaking vessel is the stand-on vessel.
Neither vessel is the stand-on vessel
The overtaking vessel must maintain course and speed.
The overtaking vessel must keep out of the way of the other
6. Rule 16 refers to action to be taken by------
The give-way vessel
The stand-on vessel
The head-on vessel
The crossing vessel
7. The steering and sailing rules for vessels in restricted visibility apply to vessels.
In sight of one another in fog
Navigating in or near an area of restricted visibility
Only if they are showing special-purpose lights
Only if they have operational radar
8. Navigation lights must be displayed in all weathers from sunset to sunrise. They
Must be displayed when day signals are being used
B) must be displayed when moored to a pier
C) may be extinguished at night on open waters when no other vessels are in the sea
D) may be displayed during daylight
9. ‘Special rules made by an appropriate authority’ .
A) may be established for roadsteads, harbors, rivers, lakes, and inland waterways connected with the high seas and navigable by seagoing vessels
B) shall conform as closely a possible to the ‘72 COLREGS
C) may specify additional station or signal lights, or whistle signals for warships and vessels in convoy
D) All of the above.
10. When navigating in thick fog with the radar on, you should
A) station the look-out in the wheelhouse to keep a continuous watch on the radar
B) secure the sounding of fog signals until a vessel closes within five minutes
C) station a look-out as low down and far forward as possible
D) keep the radar on the shortest available range for early detection of approaching vessels
11. +If necessary, to avoid a collision, any vessel may have to.
A) reduce speed substantially
B) take all way off or reverse her engines
C) alter her course
D) All of the above.
12. A vessel using a traffic separation scheme is forbidden to
A) proceed through an inappropriate* traffic lane
B) engage in fishing in the separation zone
C) cross a traffic lane
D) enter the separation zone, even in an emergency
13. A power-driven vessel fishing with trolling lines must give way to a
A) power-driven vessel approaching from his port side
Tugboat
C) sailing vessel overtaking him
D) power-driven vessel he is overtaking +
14. You are aboard the give-way vessel in a crossing situation- Which of the following should you not do when obeying the rules?
A) Cross ahead of the stand-on vessel.
B) Make a large course change to starboard.
C) Slow your vessel.
D) Back your vessel.
15. Which choice represents an example of ‘restricted visibility?
A) Navigating on a dark, moonless night.
B) Operating a vessel on a narrow, winding channel with banks covered by dense undergrowth.
C) Operating a vessel in clear weather just outside a dense fog bank.
D) All of the above.
16. The rules concerning lights shall be complied with in all weathers from sunset to sunrise. The lights.
A) shall be displayed in restricted visibility during daylight hours
B) need not be displayed when no other vessels are in the area
C) shall be set at low power when used during daylight hours
D) need not to be displayed by unmanned vessel
17. When must be a look-out done ?
A) once an hour.
B) twice a day.
C) at all times.
D) only in Restricted Visibility.
18. Any action taken to avoid collision shall.
A) be a positive action, made in ample time and using good seamanship
B) be carefully checked until the other vessel is finally past and clear
C) result in passing at a safe distance
D) All of the above.
19. Vessels operating in an established traffic separation scheme must
A) not normally enter a separation zone or cross a separation line except in an emergency to avoid immediate danger
B) avoid anchoring in a TSS or in areas near its termination
C) avoid crossing traffic lanes
D) All of the above.
20. When there is risk of collision between a power-driven vessel and a sailing vessel, the power-driven vessel shall keep out of the way except when
A) the sailing vessel crosses from starboard to port
B) the sailing vessel crosses from port to starboard
C) the sailing vessel is Tunning free* or meeting head and head**
D) overtaken by the sailing vessel
21. Every vessel that is to* keep out of the way of another vessel must take positive action early to comply with this obligation and must
A) avoid crossing ahead of the other vessel
B) avoid passing astern of the other vessel
C) sound one (1) prolonged blast to indicate compliance
D) alter course to port for a vessel on her port side
22. Which of the following is a requirement for a vessel navigating near an area of restricted visibility?
A) A power-driven vessel shall have her engines ready for immediate maneuver.
B) She must sound appropriate sound signals.
C) If she detects another vessel by radar, she shall determine if risk of collision exists.
D) All of the above.
23. You must display navigation lights from.
A) sunrise until sunset
B) whenever deemed necessary
C) sunset to sunrise and at all other times in restricted visibility
D) sunset to sunrise
24. Who is held responsible for an accident resulting from neglecting to comply with the navigation rules or neglecting any precaution required by the ordinary practice of seamen?
A) The owners) of the vessel and/or the vessel itself.
B) The crew of the vessel.
C) The master of the vessel.
D) Any or all of the above.
25. Safe speed is defined as that speed where .
A) you can stop within your visibility range
B) you can take proper and effective action to avoid collision
C) you are traveling slower than surrounding vessels
D) no wake comes from your vessel
26. Which action is permitted in a traffic separation scheme?
A) A vessel under 20 meters may impede a large vessel.
B) Holding a sailboats regatta in a traffic lane.
C) Crossing a traffic lane.
D) A vessel engaged in fishing may impede a vessel only if following a traffic lane.
27. An overtaking situation occurs when one vessel approaches another from more than how tnamy degrees abaft the beam?
A) 0.0
B) 11.25
C) 22.5°
D) 45.0°
28. Your vessel is not making way, but is not in any way disabled. Another vessel is approaching you on your starboard beam. Which statement is true?
A) The other vessel must give way since your vessel is stopped.
B) Your vessel is the give-way vessel in a crossing situation.
C) You should be showing the lights or shapes for a vessel not under command.
D) You should be showing the lights or shapes for a vessel restricted in her ability to maneuver.
29. A vessel operating in the fog should.
A) be prepared to stop if necessary
B) have her engines ready for immediate maneuver
C) navigate with extreme caution
D) All of the above.
30. A vessel may exhibit lights other than those prescribed by the Rules as long as the additional lights.
A) do not interfere with the keeping of a proper look-out
B) are not the color of either sidelight
C) have a lesser range than the prescribed lights
D) All of the above.
31. Under what conditions may you violate the Rules?
A) When you are willing to accept the consequences of non- compliance.
B) When special circumstances occur.
C) With due regard to the dangers of navigation and collision.
None
32. In restricted visibility, every vessel shall at all times proceed at a
A) moderate speed
B) safe speed which is the fastest speed consistent with conditions
C) slow speed
D) speed that allows you to stop within half the distance of visibility
33. Which vessel is directed not to impede the passage of a vessel which can only navigate inside a narrow channel?
A) A vessel of less than 20 meters in length.
B) A vessel not under command.
C) A vessel engaged in surveying.
D) All of the above.
34. +A vessel may enter a traffic separation zone
A) in an emergency
B) to engage in fishing within the zone
C) to cross the traffic separation scheme
D) Any of the above.
35. Vessel A is heading north. Vessel B is on reciprocal course and is heading.
A) north
East
South
D) west
36. In the Rules, the arc of visibility of lights is measured in
Degrees
B) points of the compass
C) either degrees or points
D) miles
37. Which factors must you consider when setting a ‘safe speed?’
A) The state of the wind, sea, current, visibility, traffic density, and the proximity of navigational hazards.
B) Maintaining your reported or estimated time of arrival (ETA).
C) The speed normally maintained by a vessel of your type of class.
D) Whether your vessel is a passenger or cargo vessel.
38. Which vessel shall avoid impeding the safe passage of a vessel constrained by her draft?
A) A vessel not under command.
B) A fishing vessel.
C) A vessel restricted in her ability to maneuver.
D) All of the above.
39. Two vessels meeting in a head-on situation are directed by the Rules to
A) alter course to starboard and pass port to port
B) alter course to port and pass starboard to starboard
C) decide on which side the passage will occur by matching whistle signals
D) slow to bare steerageway
40. The term ‘power-driven vessel’ refers to any vessel
A) with propelling machinery on board whether in use or not
B) making way against the current
C) with propelling machinery in use
D) traveling at a speed greater than that of the current
41. As defined in the Rules, a white masthead light shows through an arc ot how many degrees?
A) 90°
B) 225°
C) 112.5°
D) 360°
42. Which is considered to be a ‘vessel’ under the Rules?
A) A sailboat.
B) A hovercraft or hydrofoil
C) A seaplane on the water.
D) All of the above.
43. When setting a safe speed, you must consider all factors except
A) traffic density and your vessel’s maneuverability, turning, and stopping distances
B) visibility, wind, sea current, draft, water depth, and navigational hazards
C) the schedule your vessel is expected to keep
D) the presence of background lights such as from shore lights or from the backscatter of your own lights
44. If two sailing vessels are running free with the wind on the same side, which one must keep clear of the other?
A) The one with the wind closest abeam.
B) The one with the wind closest astern.
C) The one to leeward.
D) The one to windward.
45. In which situation do the Rules require both vessels to change course?
A) Any time the danger signal is sounded.
B) When two power-driven vessels are crossing and it is apparent to the stand-on vessel that the give-way vessel is not taking appropriate action.
C) When two power-driven vessels are meeting head-on.+
D) All of the above.
46. A stand-on vessel in a crossing situation is allowed to* take action when .
A) collision is imminent
B) the distance between the vessels is less than one (1) mile
C) it becomes apparent to her that the give-way vessel is not taking appropriate action
D) the relative speed of the vessels indicates that they will meet in less than three (3) minutes
47. A vessel is ‘engaged in fishing’ when
A) her gear extends more than 100 meters from the vessel
B) she is using any type of gear, other than lines
C) she is using fishing apparatus which restricts her maneuverability
D) she has any fishing gear on board
48. The arc Visibility for sidelights is from right ahead to
A) 22.5° abaft the beam
Abeam
C) 22.5° forward of the beam
D) 135° abaft the beam
49. The Rules state that a vessel shall be operated at a safe speed at all times so that she can be stopped within
A) the distance of visibility
B) 14 the distance of visibility
C) a distance appropriate to the existing circumstances and conditions
D) the distance that it would require for the propeller to go from full ahead to full astern
50. You are about to cross a narrow channel when you see an approaching vessel that can only be navigated safely within the channel. You should
A) cross the channel as you have the right of way
B) cross only if the vessel in the channel is approaching on your port side
C) not cross the channel if you might impede the other vessel
D) sound the danger signal
51. When two sailing vessels approach each other, involving risk of collision.
A) if each has the wind on a different side, the vessel with the wind on the starboard side shall keep out of the way of the other
B) if both have the wind on the same side, the vessel which is to leeward shall keep out of the way of the vessel which is to windward
C) when each has the wind on a different side, the vessel has the wind on the port side shall keep out of the way of the vessel with the wind on its starboard side
D) None of these statements are correct.
52. Where the Rules require one vessel to keep out of the way, the other vessel -----
A) shall keep her course
B) must maintain her speed
C) shall keep her course and speed
D) may take evasive action at any time
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