CIT Irrigation System Components and Installation

Question 1

What type of pipe is commonly used for mainline irrigation systems?

Accepted Answer

PVC

Answer

Copper

Answer

Polyethylene

Answer

Rubber

Question 2

Which component controls the flow of water in an irrigation zone?

Accepted Answer

Valve

Answer

Nozzle

Answer

Sprinkler head

Answer

Backflow preventer

Question 3

What is the purpose of a backflow preventer in an irrigation system?

Accepted Answer

Prevent contamination of drinking water

Answer

Increase water pressure

Answer

Allow zone isolation

Answer

Reduce noise in pipes

Question 4

Which tool is used to connect threaded PVC fittings?

Accepted Answer

Teflon tape

Answer

PVC cement

Answer

Silicone caulk

Answer

Hose clamp

Question 5

Why is it important to flush irrigation lines before installing nozzles?

Accepted Answer

To remove debris and sediment

Answer

To reduce water usage

Answer

To ensure water is safe to drink

Answer

To test water temperature

Question 6

What is the proper burial depth for lateral PVC piping in most residential irrigation systems?

Accepted Answer

6–12 inches

Answer

2–4 inches

Answer

4–6 inches

Answer

12–18 inches