Question 359Navigation General

70% to pass

You are in a channel inbound from sea. A daymark used to mark a channel junction, when the preferred channel is to port will have the shape indicated by what letter in illustration D045NG below?

Diagram for USCG Navigation General: You are in a channel inbound from sea. A daymark used to mark a channel...
A A
B B
C C
D D
AI Explanation

The correct answer is D. According to the US Coast Guard regulations, a daymark used to mark a channel junction, when the preferred channel is to the port, will have a diamond shape. This diamond-shaped daymark is indicated by the letter D in illustration D045NG. The other answer choices (A, B, and C) do not represent the correct shape for a daymark indicating a preferred channel to the port at a channel junction.

Related Questions
Q158:The Light List shows that a navigational light has a nominal range of 19 miles a... Q1645:Some locations maintain a zone time of -13. What are the zone time and date if t... Q880:An Electronic Plotting Aid (EPA) will drop off a target's vector if more than mi... Q945:Which factor has the greatest effect on the amount of gain required to obtain a ... Q286:Which buoy will NOT display white retro-reflective material?

Ready to test your knowledge?

Take a Navigation General Practice Exam
Official Resources
USCG Navigation Rules (COLREGS) 33 CFR Navigation Rules USCG National Maritime Center
← Previous All Questions Next →

Want to practice with timed exams?

Download Coast Guard Exams for the full exam experience.

App Store