What is the approximate depth of the water...

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Question 1 of 2066636eea28f7522a1c51aec0

What is the approximate depth of the water under the keel at 0615?

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Question 1 of 20

66636eea28f7522a1c51aec0

What is the approximate depth of the water under the keel at 0615?

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🔍 Key Concepts

• Tidal height at a specific time relative to high water (HW) or low water (LW) • Using the Rule of Twelfths or tide table interpolation to find height of tide at 0615 • Calculating under-keel clearance: charted depth + tide height − vessel draft

💭 Think About

• Where is 0615 in the tidal cycle: how long after the previous high or low water is it? • Once you know the height of tide at 0615, how do you combine it with the charted depth and the vessel’s draft to get depth under the keel? • Are you sure you’re working in the correct units (feet vs meters) and not mixing them? Double-check your conversions if needed.

✅ Before You Answer

• Confirm the exact times and heights of the relevant high and low waters from the tide table • Verify the vessel’s draft and the charted depth at the position in question before doing any math • Re-check your arithmetic: charted depth + height of tide − draft = depth under keel; be sure this matches one of the choices closely.

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Question 1 of 2066636eea28f7522a1c51aec0

What is the approximate depth of the water under the keel at 0615?

Back

Question 1 of 20

66636eea28f7522a1c51aec0

What is the approximate depth of the water under the keel at 0615?

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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