USCG Exam Practice · Knots, Bends, and Hitches
Nylon is selected for dock and anchor lines primarily because of which combination of properties?
- AIt floats and resists UV degradation
- BIt has high strength, excellent shock absorption, and resistance to mildew✓ correct
- CIt retains full strength when wet and does not stretch under load
- DIt has lower cost and is easier to splice than polypropylene
Why B is correct
The Boatswain's Mate Manual identifies nylon as the most common dock and anchor line due to its high strength, excellent shock absorption, and resistance to mildew. Floating and UV resistance are properties of polypropylene. Nylon actually loses approximately 10–15% strength when wet and does stretch under load.
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