Question 162Navigation General
70% to passIn the North Sea area, you sight a buoy showing an uninterrupted quick-flashing white light. Which of the four topmarks shown in illustration D031NG below will this buoy be fitted with under the IALA Buoyage system?
A
A
B
B
C
C
D
D
AI Explanation
The correct answer is B. Under the IALA Buoyage system, a buoy showing an uninterrupted quick-flashing white light in the North Sea area would be fitted with topmark B, which is a double cone with the points upward. This configuration indicates that the buoy is marking the port (left) side of a channel when entering from the sea. The other topmark options are incorrect because A is a single cone point upward (starboard side), C is a single cone point downward (preferred channel), and D is a double cone with the points downward (starboard side).
Related Questions
Q1861:What term is used to describe a tank barge constructed with the structural frami...
Q1325:A cyclone in its final stage of development is called a(n) _______________.
Q1128:An instrument which maintains a continuous record of temperature changes is call...
Q2004:A tide is called diurnal when _______________.
Q1450:The date is the same all over the world at _______________.
Ready to test your knowledge?
Take a Navigation General Practice ExamOfficial Resources
Want to practice with timed exams?
Download Coast Guard Exams for the full exam experience.
App Store