Which is TRUE of echo-sounders?

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66636ee928f7522a1c51a3c3

Which is TRUE of echo-sounders?

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🔍 Key Concepts

• How an echo-sounder actually works (it sends a sound pulse straight down and times the echo) • The difference between depth below the keel, depth below the transducer, and total water depth • Whether echo-sounders care if the bottom is hard or soft, or if they measure an average depth

💭 Think About

• Think about what exactly the instrument is physically able to measure: is it distance to the bottom, distance to the keel, or something else? • Ask yourself: does the instrument know anything about the keel position or waterline unless it is manually corrected or calibrated? • Consider whether the device can really calculate an average depth or if it simply measures one specific distance at that moment.

✅ Before You Answer

• Verify whether a standard echo-sounder reads from the transducer face down to the first strong return from the bottom • Check if any normal echo-sounder function involves calculating an average of depths • Consider if the instrument itself can inherently know keel clearance without being adjusted or offset by the operator

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Question 1 of 2066636ee928f7522a1c51a3c3

Which is TRUE of echo-sounders?

Back

Question 1 of 20

66636ee928f7522a1c51a3c3

Which is TRUE of echo-sounders?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

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