Question 400Navigation General70% to pass
A flashing green light displayed at a single lock means that the lock is _______________.
AI Explanation
The correct answer is C) ready for entrance.
According to the US Coast Guard regulations, a flashing green light displayed at a single lock indicates that the lock is ready for entrance. This means that the lock is open and the vessel can safely proceed into the lock.
The other answer choices are incorrect because:
A) A steadily displayed green light, not a flashing one, would indicate that the lock is ready for entrance but the gates cannot be closed completely.
B) A red light, not a green light, would indicate that the lock is not ready for entrance.
D) A flashing light, not a steady light, would indicate that the lock is ready for entrance, not being made ready.
Related Questions
#398 Which light signal indicates that you have permission to enter a lock on the Ohio River? #399 When approaching a lock entrance, the visual signal displayed when a single lock is ready for entrance is a flashing _______________.#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? #403 A drawbridge may use visual signals to acknowledge a vessel's request to open the draw. Which signal indicates that the draw will NOT be opened immediately?