Colreg 3

A detailed illustration of a power-driven vessel navigating through a narrow channel with various navigation lights displayed, along with signs of safe boating practices.

Navigational Rules Quiz

Test your knowledge of the International Regulations for Preventing Collisions at Sea (COLREGs) with this comprehensive 29-question quiz. Whether you are a maritime professional or a boating enthusiast, this quiz will challenge your understanding of navigation rules and safety on the waters.

Key features of the quiz:

  • Multiple choice questions covering a wide range of topics.
  • Immediate feedback on your answers.
  • Learn and improve your navigation skills.
29 Questions7 MinutesCreated by SailingStar582
70. You sight another power-driven vessel on your starboard side crossing so as to involve the risk of collision. You should.
A) turn to starboard
B) keep out of the way and avoid crossing ahead of the other vessel
C) slow down, and, if the circumstances of the case admit, stop your engines
D) maintain your course and speed
71. A power-driven vessel underway and on a collision -course with I sailing vessel on her port side is required to.
A) maintain her course and speed
B) use her best judgment
C) sound a whistle signal
D) stay clear of the sailing vessel
72. The range of visibility required of anchor lights for a vessel less than 50 meters but more than 12 meters in length is a minimum of
A) 6 miles
B) 2 miles
C) 3 miles
D) 5 miles
73. When two power-driven vessels are crossing, which vessel has the right of way?
A) The vessel which is to starboard of the other vessel.
B) The vessel which is to port of the other vessel.
C) The larger vessel.
D) The vessel that sounds the first whistle signal.
74. A power-driven vessel has on her port side a sailing vessel which is on a collision course. The power-driven vessel is to.
A) maintain course and speed
B) keep clear
C) sound one blast and turn to starboard
D) stop her engines
75. Navigation lights for vessels less than 12 meters in length must be visible at a minimum of.
A) 2 miles (all lights)
B) masthead light, 2 miles; all other lights, 1 mile
C) masthead light, sternlight, towing light, white-red-green or yellow all-round lights, 2 miles; sidelights, I mile
D) masthead light, 3 miles; all other lights, 2 miles
76. Your power-driven vessel is underway but drifting and not making way through the water. You sight another power-driven vessel approaching off your starboard beam and believe there is risk of collision. All these factors should govern your future actions except.
A) since you claim no special status you are subject to the Rules as a vessel underway
B) you must keep out of the way in a crossing situation
C) you must take early and substantial action to keep well clear
D) All of the above, without exception.
77. A sailing vessel underway must keep out of the way of a.
A) power-driven vessel
B) pilot vessel
C) tugboat displaying ball-over-diamond-over-ball shape
D) seaplane
78. A vessel proceeding along a narrow channel shall.
A) avoid crossing the channel at right angles
B) not overtake any vessel within the channel
C) keep as close as possible to the edge of the channel on her starboard side
D) when nearing a bend in the channel, sound a long blast on the whistle
79. A power-driven vessel more than 50 meters in length while underway shall exhibit.
A) a masthead light forward
B) sidelights and stemlights
C) a second masthead light abaft and higher than the forward one
D) All of the above.
80. You are crossing a narrow channel in an 18-meter tug when you sight a loaded tankship off your port bow coming up the channel. Which statement is correct?
A) Neither vessel has the right of way because the tankship is crossing.
B) You shall not impede the safe passage of the tankship.
C) The tankship has the right of way because it is in the channel.
D) The tankship has the right of way because it is the larger of the two vessels.
81. In respect to the two masthead lights required on vessels over 50 meters in length.
A) the forward light is placed higher than the aft one
B) the aft light is located higher than the forward light
C) both lights are at an equal height above the hull
D) one light may be used as an anchor light and both are range lights
82. A stand-on vessel is .
A) required to give way in a crossing situation
B) required to sound the first passing signal in a meeting situation
C) free to maneuver in any crossing or meeting situation as it has the 'right of way’
D) required to maintain course and speed in a crossing situation
83. If your vessel is the stand-on vessel in a crossing situation.
A) you must keep your course and speed
B) you may change course and speed as the other vessel must keep clear
C) the other vessel must keep her course and speed
D) both vessels must keep their course and speed
84. Which statement is correct when two sailing vessels approach each other?
A) A vessel on the port tack gives way to vessel on the starboard tack.
B) The vessel to leeward gives way to the vessel to windward.
C) When vessels have the wind on different sides, the leeward vessel gives way to the windward vessel.
D) In a meeting situation, neither vessel has the right of wav.
85. A power-driven vessel over 50 meters in length when underway shall carry a second white masthead light.
A) similar in construction and character to the masthead light
B) placed above the keel so that one light shall be at least 4.5 meters higher than the other
C) so that the forward light shall always be shown lower than the after one
D) All of the above.
86. The only difference in minimum navigation light visibility requirements for vessels of 20 meters and over and those under 20 meters is .
A) the masthead light for the larger vessels must be visible 5 for miles
B) the masthead light for the smaller vessels must be visible for 3 miles
C) There are no differences in the visibility of sidelights, stemlights, towing lights, and all-round lights.
D) All of the above.
87. Which statement is true concerning a 75-meter power-driven vessel underway at night?
A) She must exhibit an all-round white light at the stem.
B) She must exhibit forward and after masthead lights.
C) She must exhibit only a forward masthead light.
D) She may exhibit a red light over a green light forward.
88. A vessel which detects by radar the presence of another vessel shall determine if a close-quarters situation is developing and/or if risk of collision exists. If risk exists, avoid all except altering course
A) to port for a vessel forward of the beam except an overtaken vessel
B) towards a vessel abeam
C) towards a vessel abaft the beam
D) to starboard for a vessel forward of the beam
89. The minimum length of a. power-driven vessel that must show forward and after masthead light is.
A) 30 meters
B) 50 meters
C) 75 meters
D) 100 meters
90. Which statement is true concerning two sailing vessels?
A) A sailing vessel with the wind forward of the beam on her port side shall keep out of the way of a sailing vessel with the wind forward of the beam on the starboard side.
B) When both vessels have the wind on the same side, the vessel to leeward shall keep out of the way.
C) A sail vessel with the wind aft of the beam must keep out of the way of a vessel sailing into the wind.
D) None of the above.
91. What lights must be shown on a barge being towed astern at night?
A) A white light at each comer.
B) A white light and fore and aft.
C) Sidelights and a stemlight.
D) A stemlight only.
92. Which vessel may show two masthead lights in a vertical line?
A) A vessel less than 50 meters in length with a 20 meter tow.
B) A sailing vessel towing a small vessel astern.
C) A vessel restricted in her ability to maneuver.
D) A vessel engaged in dredging.
93. In addition to her sidelights, stemlight, and towing lights, a vessel towing astern carries three white lights in a vertical line when
A) the length of the tow, measured from the stem of the towing vessel to the after end of the tow, exceeds 200 meters
B) the length of the tow, measured from the bow of the towing vessel to the stem of the last vessel being towed, exceeds 200 meters
C) the length of the towing hawser exceeds 200 meters
D) the length of the tow, measured from its bow to its stem exceeds 200 meters
94. Vessel which is towing and showing three forward white masthead lights in a vertical line is indicating that the length of the.
A) towing vessel is less than 50 meters
B)
C) tow is less than 200 meters
D) tow is greater than 200 meters
95. What lights must be shown on a barge being towed astern at night?
A) A white light at each comer.
B) A white light and fore and aft.
C) Sidelights and a stemlight.
D) A stemlight only.
96.Which of the following is used to show the presence of a partly submerged object being towed?
A) A diamond shape on the towed object.
B) An all-round light at each end of the towed object.c) A search light from the towing vessel in the direction of the tow.
C) A search light from the towing vessel in the direction of the tow.
D) AH of the above
97.A 50-meter vessel is towing astern and the length of the tow is 100 meters. In addition to sidelights, she may show.
A) two masthead lights forward, two masthead lights aft, a stemlight, and a towing light above the stemlight
B) a masthead light forward, two masthead lights aft, a stemlight, and a towing light above the stemlight
C) no masthead light forward, two masthead lights aft, a stemlight, and a towing light above the stemlight
D) three masthead lights forward, one masthead light aft, and two towing lights in a vertical line at the stern
98. A towing vessel 30 meters in length is pushing barges ahead. How many white masthead lights is the vessel required to show at night?
A) One
B) Two
C) Three
D) Four
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