CHT Irrigation & Water Management 3

Question 1

What is the recommended practice when winterizing an irrigation system in a cold climate?

Accepted Answer

Blow out all water using compressed air

Answer

Fill pipes with antifreeze

Answer

Leave one zone running continuously

Answer

Increase water pressure

Question 2

An irrigation audit involves:

Accepted Answer

Measuring precipitation rate and uniformity of an irrigation system

Answer

Reviewing plant purchase invoices

Answer

Inspecting fertilizer storage

Answer

Checking electrical panels

Question 3

Which material is most commonly used for modern residential irrigation mainlines?

Accepted Answer

PVC (polyvinyl chloride)

Answer

Copper

Answer

Galvanized steel

Answer

Cast iron

Question 4

What is the purpose of a pressure regulator in a drip irrigation system?

Accepted Answer

Reduce pressure to a level safe for drip components

Answer

Increase water volume

Answer

Filter nutrients

Answer

Automate zone schedules

Question 5

Gray water reuse in landscape irrigation refers to:

Accepted Answer

Recycling household sink and laundry water for irrigation

Answer

Using stormwater collected in ponds

Answer

Applying reclaimed municipal wastewater

Answer

Using water from pool draining

Question 6

What does 'head-to-head coverage' mean in sprinkler design?

Accepted Answer

Each sprinkler throws water to reach the next head's location

Answer

Two heads pointing at each other

Answer

Heads installed back-to-back on a single lateral

Answer

Double-stacking of pop-up heads