Safety & Environmental Protection (Deck) USCG Question #1884 (Set 58)

What term indicates the line drawn at the top of the flat plate keel?

Official USCG Answer & Rule Citation

Correct Answer: Option A — Base line

The base line is a horizontal reference line drawn at the top of the flat plate keel from which all vertical molded dimensions, heights, and clearances are measured in structural ship design and stability calculations.

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