Master Plumber Practice Exam

The piping material known for being lightweight and corrosion resistant is PVC (Polyvinyl Chloride). PVC has a low density, making it much easier to handle and install compared to heavier materials like cast iron or galvanized steel. Its resistance to corrosion is one of the key benefits of using PVC for plumbing and drainage systems, as it does not rust or dent and can withstand exposure to a variety of chemicals and environmental conditions.

In addition to being lightweight and resistant to corrosion, PVC is also economical and easy to cut and join, making it a popular choice for residential and commercial plumbing installations. This combination of characteristics helps facilitate effective and efficient plumbing solutions while extending the lifespan of the piping system.

Cast iron is known for its durability but is heavier and susceptible to corrosion over time. ABS (Acrylonitrile Butadiene Styrene) is also lightweight and used in some plumbing applications, but PVC is more widely recognized for its superior corrosion resistance. Galvanized steel, while strong, is prone to rusting and corrosion, which can lead to long-term issues in plumbing installations.