Plumber Pipe Installation & Repair 1

Question 1

What is the most commonly used material for residential water supply pipes?

Accepted Answer

Copper and PEX

Answer

Copper and PEX (cross-linked polyethylene) pipes are commonly used in residential plumbing due to their durability and resistance to corrosion.

Question 2

Which tool is commonly used to cut PVC pipes?

Accepted Answer

Hacksaw or pipe cutter

Answer

A pipe cutter or hacksaw is typically used to cut PVC pipes cleanly and efficiently.

Question 3

What is the primary purpose of a plumbing trap?

Accepted Answer

To prevent sewer gases from entering the building

Answer

A plumbing trap prevents sewer gases from entering buildings while allowing waste to flow out properly.

Question 4

Which fitting is commonly used to connect two pipes of different diameters?

Accepted Answer

Reducer

Answer

A reducer fitting is used to connect pipes of different diameters, ensuring proper flow and connection.

Question 5

Why is it important to properly slope drainage pipes?

Accepted Answer

To ensure smooth wastewater flow and prevent blockages

Answer

Properly sloping drainage pipes ensures smooth wastewater flow and prevents blockages.

(PC) Plumber Certification Practice Test