Test Your Knowledge
1. Contraction and expansion of plastic piping materials are based on the following criteria:
a. temperature, humidity and pipe diameter
b. pressure, temperature and pipe diameter
c. pressure, temperature and humidity
d. temperature, humidity and pipe length
2. The flow rate for plastic pipe should not exceed:
a. 2 feet per second
b. 5 feet per second
c. 10 feet per second
d. 25 feet per second
Don't worry if you didn't know the answers. IAPD's bookstore has plenty of resources to help you learn about plastics, or you can contact the experts — IAPD distributors at www.iapd.org.