🔍 Key Concepts

• Compare the durability of synthetic fiber lines (nylon) versus natural fiber lines (manila). • Think about how resistance to rot, mildew, and UV exposure affects service life. • Remember that "if given equal care" means same use and maintenance conditions for both lines.

💭 Think About

• Is nylon more or less affected by moisture and rot than manila, and how would that change its expected lifespan? • If manila begins to weaken relatively quickly under marine conditions, how much longer would a synthetic line reasonably be expected to stay serviceable? • Among the options given, which factor (3x, 4x, 5x, 6x) best matches the commonly taught rule-of-thumb ratio for nylon vs. manila life span?

✅ Before You Answer

• Be sure you’re thinking about service life (how long it lasts), not strength or safe working load. • Confirm in your mind that the question assumes proper care and equal conditions for both types of line. • Before choosing, mentally rank the options from "modest increase" to "very large increase" and ask which one best fits standard seamanship teaching for nylon vs. manila longevity.