Plumbing Materials and Fittings Quiz

What does PEX stand for in plumbing?

• Polyethylene Expansion

• Polyethylene X-ray

• Polyethylene Cross-linked

• Polyethylene Extruded

What are the three colors in which PEX pipe is available?

• Purple, Brown, Pink

• Black, Orange, Gray

• Red, Blue, White

• Red, Green, Yellow

Which type of PEX pipe will stretch more, A or B?

• Neither stretch

• Both stretch equally

• PEX B

• PEX A

What is the process called where the end of a PEX A pipe is stretched and a fitting is pushed in to seal it?

• Warm Contraction

• Hot Compression

• Freeze Sealing

• Cold Expansion

What is the purpose of the raised ribs on a brass PEX fitting?

• To increase weight

• To decrease flexibility

• To provide grip for crimping

• To reduce water flow

What is the purpose of the blackened copper rings used for crimping PEX pipes?

• To increase durability

• To improve flexibility

• To indicate they are for PEX

• To reduce friction

What is the purpose of the red plastic stop on a pro crimp ring?

• To indicate it is for brass fittings

• To provide grip for crimping

• To reduce water flow

• To indicate it is for plastic fittings

What is the purpose of a bend support for PEX pipes?

• To increase water pressure

• To improve insulation

• To reduce pipe flexibility

• To prevent kinking during bending

What is the purpose of a drop ear elbow in plumbing?

• To create a branch connection

• To reduce water pressure

• To prevent leaks

• To provide a secure connection

What is the purpose of an angle stop valve in plumbing?

• To control water flow to a specific fixture

• To increase water pressure

• To prevent corrosion

• To reduce pipe flexibility