USCG Exam PracticeKnots, Bends, and Hitches
Polypropylene line is selected for a specific deck application. Which of the following statements correctly identifies both an advantage and a limitation of polypropylene compared to nylon?
- A. Polypropylene has higher strength than nylon but loses elasticity when wet
- ✓ Polypropylene floats but has lower strength and degrades under UV exposureCorrect
- C. Polypropylene resists mildew better than nylon but sinks when loaded
- D. Polypropylene provides superior shock absorption but breaks down in saltwater
Why B is correct
The Boatswain's Mate Manual states that polypropylene floats but has lower strength than nylon and breaks down under UV exposure. Nylon, not polypropylene, is noted for shock absorption and mildew resistance.