Question

practice exam question 38 of 60 question 38 what causes a pfd to wear out over time? a washing it with soap and water b storing it upside down c exposure to cold air and rain d exposure to ultraviolet rays from the sun quit practice exam

Explanation:

Personal Flotation Devices (PFDs) are often made of materials that degrade when exposed to ultraviolet (UV) rays from the sun over time. Washing with soap and water (A) is a proper cleaning method and not damaging. Storing upside down (B) doesn't cause wear. Cold air and rain (C) don't typically cause significant wear compared to UV exposure. So UV rays from the sun (D) are the main cause of PFD wear over time.

Answer:

D. exposure to ultraviolet rays from the sun