What is the term for the depth below the keel used in navigation?

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Multiple Choice

What is the term for the depth below the keel used in navigation?

Explanation:
The amount of water beneath the hull is described as depth, or soundings. In navigation, depth (often shown as soundings on charts) tells you how deep the water is from the surface down to the seabed, which is the water under the keel as you sail. This is different from draft, which is how much water your vessel requires to float (distance from the waterline to the keel). The waterline and the plural drafts aren’t the terms used for the actual depth below the keel. So the best answer is depth (soundings).

The amount of water beneath the hull is described as depth, or soundings. In navigation, depth (often shown as soundings on charts) tells you how deep the water is from the surface down to the seabed, which is the water under the keel as you sail. This is different from draft, which is how much water your vessel requires to float (distance from the waterline to the keel). The waterline and the plural drafts aren’t the terms used for the actual depth below the keel. So the best answer is depth (soundings).

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