As it pertains to a "constant-tension" mooring winch, what statement is true?

Correct Answer: Option C — A constant-tension mooring winch is set to automatically render and recover mooring line using the prime mover when the mooring line tension varies outside of narrow preset adjustable tension limits.

Constant-tension winches utilize an automatic control system that monitors line tension. When tension deviates from the preset range, the prime mover engages to either pay out (render) or haul in (recover) the line, ensuring the vessel remains securely moored despite tidal changes or ship movement.