Question 382Navigation General70% to pass
Illustration D036NG below represents a fixed C of E lock and dam. What navigational light(s) is(are) exhibited at the position indicated by the letter D?
AI Explanation
The correct answer is A) Two green lights.
According to the U.S. Coast Guard Navigation Rules, for a fixed lock and dam structure like the one depicted in Illustration D036NG, the position indicated by the letter D would exhibit two green lights to mark the entrance to the lock. This is because green lights are used to mark the main channel or entrance to the lock, guiding vessels through the waterway. The other answer choices are incorrect, as a red light would be used to mark a side or secondary channel, and no light would not conform to the standard navigational lighting requirements for this type of structure.
Related Questions
#380 The lock chamber is 600 feet X 110 feet. Your towboat is 150 feet X 35 feet. Which of these tows will require a double lockage? #381 You are approaching a swing bridge at night. You will know that the bridge is open for river traffic when _______________.#383 Illustration D037NG below represents a movable dam. If there is high water and the wickets are down so that there is an unobstructed navigable pass through the dam, what light(s) will be shown at D if the lock walls and piers are not awash? #384 What lights would you see on the Illinois water way when any wickets of the dam or bear traps are open, or partially open, which may cause a set in the current conditions in the upper lock approach? #385 The white lights in a vertical line on a multiple-span bridge indicate _______________.