Question

A reference mark on the hull of the ship?

Answer 1

Explanation:

Merchant ships have a marking on their hulls known as the Plimsoll line or the Plimsoll mark, which indicates the limit until which ships can be loaded with enough cargo. Internationally, the Plimsoll line on a ship is officially referred to as the International load line.

Answer 2

Answer:

plimsoll line is a reference mark on the hill of the ship