COLREGs General Quiz

Colregs general quiz

A balanced COLREGs quiz combining traditional rule knowledge with practical questions based on situations encountered at sea.

 

Results

Passed! Good work, Officer. You’ve got a solid grasp of COLREGs.

Not quite this time. Review the areas you missed and test your COLREGs knowledge again.

Share your score!
Tweet your score!
Tweet your score!
Share to other

#1. Under Rule 30(c), what additional lighting requirement applies to a vessel of 100 metres or more in length at anchor?

#2. You are the OOW on a power-driven vessel underway. Another power-driven vessel crosses from your port side; compass bearings remain steady. At 2 nautical miles, the give-way vessel has not taken appropriate action. Under Rule 17(a)(ii), what action are you permitted to take?

#3. Under Rule 26(b), what day shape must a vessel engaged in trawling exhibit?

#4. You are the watchkeeper on a vessel overtaking a slower power-driven vessel at night. From your position, you observe only the white sternlight of the vessel ahead. By definition, your vessel is coming up from what direction?

#5. You are the watchkeeper on a stand-on vessel in a crossing situation. The give-way vessel at 3 nautical miles has taken no action despite whistle signals. Under Rule 17(a)(ii), when is your vessel permitted to take avoiding action by her manoeuvre alone?

#6. You are the watchkeeper on a vessel. You observe a power-driven vessel underway but stopped and making no way through the water in dense fog. Under Rule 35(b), what sound signal should she be sounding?

#7. Under Rule 34(d), what signal must a vessel give when vessels are in sight of each other and she fails to understand the intentions or actions of the other?

#8. Under Rule 8(b), when you take action to avoid a collision by altering course or speed, how should that alteration be executed?

#9. Under Rule 3(d), which fishing operation is expressly excluded from the definition of a ‘vessel engaged in fishing’?

#10. You are the watchkeeper on a power-driven vessel. A radar target is detected 15 degrees abaft your port beam at 4 nautical miles in restricted visibility. The target’s range is decreasing. Under Rule 19(d)(ii), what course alteration should be avoided?

#11. Under Rule 2(b), what consideration authorizes a watchkeeper or master to depart from the COLREGs?

#12. You are the OOW on a power-driven vessel. You sight an approaching vessel showing two all-round red lights in a vertical line at night and no masthead lights. What type of vessel is this, and what is your responsibility?

#13. You are the OOW on a power-driven vessel. In sight of another vessel, you put your engines full astern to avoid collision. Under Rule 34(a), what whistle signal must you sound?

#14. Under Rule 27(d), what lights must a vessel engaged in dredging or underwater operations exhibit on the side on which an obstruction exists?

#15. Under Rule 8(e), if a vessel finds it necessary to allow more time to assess a complex developing collision situation or to avoid collision, what action should she take?

#16. Under Rule 21(a), what are the horizontal arc and placement requirements for a ‘masthead light’?

#17. Under Rule 30(d), what day shape must a vessel aground exhibit?

#18. You are the OOW on a vessel at anchor in a fairway during dense fog. A target on radar is closing rapidly on a collision course. In addition to the standard bell/gong signal, what whistle signal may you sound under Rule 35(g)?

#19. Under Rule 30(d), what lights must a vessel aground exhibit at night in addition to the anchor lights prescribed for her length?

#20. Under Rule 32, what is the exact duration specified for a ‘short blast’?

#21. Under Rule 21(b), over what horizontal arc must a green starboard sidelight show an unbroken light?

#22. Under Rule 8(c), when there is sufficient sea room, what constitutes the most effective action to avoid a close-quarters situation, provided it is made in good time and is substantial?

#23. Under Rule 34(d), when two vessels in sight of each other are approaching and either fails to understand the intentions of the other, what is the mandatory sound signal?

#24. During your watch in fog, a radar target is detected 30 degrees on your port bow at 4 nautical miles, with range decreasing on a steady bearing. Under Rule 19(d)(i), what manoeuvre should be avoided so far as possible?

#25. Under Rule 12, when two sailing vessels are approaching one another so as to involve risk of collision, which vessel must keep out of the way when each has the wind on a different side?

Previous
Finish