Question 333Navigation General70% to pass
Under the U.S. Aids to Navigation System, a special mark possesses which of the following characteristics?
AI Explanation
The correct answer is B) May show a yellow light with a flashing rhythm.
Special marks under the U.S. Aids to Navigation System are used to indicate special areas or features, and they are distinguished by their yellow color. Per the regulations, special marks may show a yellow light, and this light can have a flashing rhythm, which makes option B the correct choice.
The other options are incorrect because: A) special marks are not required to have a fixed or flashing white light, C) the Morse code "A" rhythm is not a characteristic of special marks, and D) special marks do not necessarily have to be lighted with a yellow isophase light.
Related Questions
#331 A special purpose buoy shall be _______________.#332 In both regions of the IALA buoyage system, which topmark shown in illustration D022NG below is used on a special mark? #334 Which light characteristic may be used on a special purpose mark? #335 Which of the buoys listed below could be used to mark an anchorage? #336 The Light List shows that a navigational light has a nominal range of 15 miles and a height above water of 29 feet (8.8 meters). Your height of eye is 52 feet (15.8 meters) and visibility is 6.0 miles. At which approximate range will you first sight the light?