Question 320 Rules of the Road

90% to pass

INLAND ONLY What is true of a "special flashing light"?

A It flashes at the rate of 120 flashes per minute.
B It may show through an arc of not less than 180°.
C It is optional below the Baton Rouge Highway Bridge.
D All of the above
AI Explanation

The correct answer is B) It may show through an arc of not less than 180°. According to the United States Coast Guard regulations, a "special flashing light" used on inland waterways must be visible through an arc of not less than 180° of the horizon. This ensures the light can be seen from multiple directions, improving visibility and safety for vessels navigating the inland waterways. The other options are incorrect because: A) the flash rate is not specified, C) the requirement for a special flashing light is not dependent on the Baton Rouge Highway Bridge, and D) not all of the statements are true.

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Official Resources
USCG Navigation Rules (COLREGS) 33 CFR Navigation Rules USCG Navigation Center
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