What part of the rope should be examined to detect internal wear?

The correct answer focuses on examining the rope diameter and cross-section to detect internal wear. This is critical because internal wear can significantly compromise the strength and integrity of the rope, even if the outer appearance seems acceptable. By inspecting the rope's diameter, one can gauge whether any internal fibers have been compromised or if there has been any reduction in overall strength due to wear. The cross-section analysis allows for a more thorough understanding of any internal damage or fraying that may not be visible from the surface.

In contrast, looking solely at the length of the rope does not provide any insight into the condition of the internal components. Assessing only the surface texture might miss issues occurring beneath the outer layer, where wear often happens due to flexing and friction. Focusing solely on the external wires fails to consider the full rope structure, which includes multiple strands that contribute to its overall performance and safety. Therefore, a comprehensive assessment that includes both diameter and cross-section is essential for identifying any internal issues effectively.