You are approaching a drawbridge and have...

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Question 1 of 2066636ee928f7522a1c51915f

You are approaching a drawbridge and have sounded the proper whistle signal requesting it to open. You hear a signal of one prolonged and one short blast from the bridge. Which action should you take?

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Question 1 of 20

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🔍 Key Concepts

• 33 CFR Part 117 – Drawbridge Operation Regulations (sound signals between vessels and drawtenders) • Standard meanings of bridge sound signals, especially one prolonged and one short blast from the bridge • The difference between a signal meaning “cannot open immediately” and one meaning “open and ready for passage”

💭 Think About

• First, recall what sound signal a vessel gives to request a bridge opening, and what sound signals a bridge gives in reply. What does one prolonged and one short from the bridge specifically indicate? • Once you know that meaning, look at each choice and ask: Does this action fit with a bridge that is not ready for immediate passage, or with a bridge that is already open/ready? • Which options add extra details (like specific distances or times) that are not part of the official signal definition in 33 CFR 117.15?

✅ Before You Answer

• Verify in 33 CFR 117.15 what one prolonged and one short blast from the bridge means (pay attention to the words about being able or unable to open immediately). • Eliminate any choice that assumes the bridge is already open and ready if the signal actually means there will be a delay. • Be cautious of answers that introduce specific numbers (yards, minutes) that are not stated in the regulation linked to that sound signal.

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