Question 399Navigation General70% to pass
When approaching a lock entrance, the visual signal displayed when a single lock is ready for entrance is a flashing _______________.
AI Explanation
The correct answer is D) green light.
When approaching a lock entrance, the visual signal displayed when a single lock is ready for entrance is a flashing green light. This is in accordance with the United States Aids to Navigation System, which specifies that a flashing green light indicates that the lock is ready for vessel entry.
The other answer choices are incorrect because: A) a flashing white light is not used for this purpose, B) a flashing amber light would indicate caution or something else, and C) a flashing red light would indicate that the lock is closed or not ready for entry.
Related Questions
#397 Which light signal indicates that you may approach the lock? #398 Which light signal indicates that you have permission to enter a lock on the Ohio River? #400 A flashing green light displayed at a single lock means that the lock is _______________.#401 If your vessel must pass through a draw during a scheduled closure period, what signal should you sound to request the opening of the draw? #402 You are approaching an open drawbridge and sound the proper signal. You receive no acknowledgment from the bridge. Which action should you take?