Question 2340 Deck General

The correct answer is B) used to slow the headway of a barge. A "check" line is a line used to slow the headway (forward motion) of a barge or other vessel, typically when maneuvering in confined waters or approaching a dock. This allows the operator better control over the vessel's speed and position. The other answer choices are incorrect: A) A safety line attached to a worker is called a "safety" line, not a "check" line. C) A "check" line is not used to measure the overhead height of a bridge. D) A "check" line is not used to measure water depth - that would be done with a sounding line or depth sounder.