A loss of diameter greater than what percentage, due to corrosion, is reason for removing a rope from service?

The correct choice is that a loss of diameter greater than 10% due to corrosion is a recognized standard for removing a rope from service. This guideline is crucial for ensuring safety when using ropes in various applications, such as rigging and lifting.

When the diameter of a rope is reduced by corrosion, its strength and load-bearing capacity can significantly diminish. A 10% loss of diameter is considered a critical threshold; beyond this point, the structural integrity of the rope may be compromised enough to pose safety risks. Regular inspections are essential to assess the condition of the rope, and a loss of diameter at or exceeding this percentage indicates that the rope may no longer be reliable.

In the context of other percentage losses, lower thresholds such as 5% may not adequately account for the serious impacts of wear and corrosion that can occur over time and with use. Therefore, 10% serves as an appropriate and industry-recognized measure for determining when a rope should be taken out of service to maintain safety and performance standards.