Question 355General Subjects - QMED

The correct answer is C) the full breaking strength of the mooring line. Mooring winches must be equipped with mechanical brakes capable of holding the full breaking strength of the mooring line. This is a requirement specified in the regulations governing the design and installation of mooring equipment on vessels. The brakes must be able to withstand the maximum potential tension that could be applied to the mooring line, which is the full breaking strength, in order to ensure the safety of the vessel and personnel during mooring operations. The other options are incorrect because they do not meet the regulatory requirement for the brake capacity to match the full breaking strength of the mooring line. Holding only half the breaking strength (A) or 50% over the working tension (B) would not provide the necessary safety margin, and the maximum expected tension (D) may be lower than the full breaking strength.