Which characteristic is notable about PVC pipes?

• A. High strength and weight
• B. High cost
• C. Lightweight and corrosion-resistant
• D. Excellent thermal conductivity

Answer: (C)

PVC pipes are recognized for being lightweight and corrosion-resistant, which makes them an ideal choice for various piping applications. The lightweight nature of PVC allows for easier handling and installation, reducing labor costs and effort during transport and setup. Additionally, their corrosion resistance means that PVC pipes do not easily degrade when exposed to moisture or various chemicals, making them suitable for carrying potable water, sewage, and other fluids without compromising integrity.

The other characteristics that are not correct focus on aspects that do not accurately represent PVC pipes. For example, they are not known for high strength in comparison to materials like metal, nor are they typically high-cost materials. Similarly, they do not exhibit excellent thermal conductivity, as PVC is not a good conductor of heat, which would not qualify it for applications requiring thermal management.