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What does 'draft' refer to in nautical terms?

  1. The width of a vessel

  2. The length of a vessel

  3. The vertical distance from the waterline to the lowest point of the keel

  4. The height of the mast

The correct answer is: The vertical distance from the waterline to the lowest point of the keel

The term 'draft' refers to the vertical distance from the waterline to the lowest point of the keel on a vessel. This measurement is important for determining the amount of water a vessel requires to safely navigate and also for determining if a vessel can fit under bridges or in shallow waters. The other options, such as width, length, and mast height, are all important measurements in nautical terms but they are not specifically referred to as 'draft'.