Question 320Navigation General70% to pass
You are approaching a drawbridge and must pass through during a scheduled closure period. What signal should you sound?
AI Explanation
The correct answer is A) Five short blasts.
When approaching a drawbridge during a scheduled closure period, you should sound five short blasts on the whistle or horn to indicate that you are requesting the bridge to open. This signal is specified in the U.S. Coast Guard Navigation Rules and Regulations, which provide the standardized sound signals for vessels.
The other answer choices are incorrect because they do not match the required signal for requesting a drawbridge opening during a closure period. Three prolonged blasts, two prolonged and two short blasts, and three short blasts followed by two prolonged blasts have different meanings and are used for other navigation situations, not specifically for requesting a drawbridge opening.
Related Questions
#318 Which navigational mark may only be lettered? #319 A spherical buoy may be _______________.#321 What is a lighted safe water mark fitted with to aid in its identification? #322 In the IALA Maritime Buoyage System, what is a red and white vertically-striped buoy used to indicate? #323 You are approaching the first of two drawbridges that span a narrow channel. The second drawbridge is close to the first. Which signals should you sound?