Irrigation System- Unit Test

Multiple Choice: Select the single most correct answer.

1. Why do Utah landscapes need irrigation?a. Utah has four seasonsb. Utah has large mountain rangesc. Utah receives an excess amount of precipitationd. Utah receives an low amount of precipitation

2. What is the application of water to the land or soil?a. Compactionb. Erosionc. Irrigationd. Precipitation

3. How is Utah water collected for use in irrigation systems?a. Bottled waterb. Rain barrelsc. Reservoirsd. Waste lagoons

4. How is water pressure in a landscape measured?a. Gallonsb. Gallons per hourc. Gallons per minuted. Gallons per second

5. What is the difference between a SST and an SSS joint?a. SSS has all threaded jointsb. SSS has one threaded jointc. SST has all threaded jointsd. SST has one threaded joint

6. What does head to head coverage prevent?a. Dry spotsb. Increased pressurec. Reduced pressured. Wasted water

7. Why should sprinkler heads not be glued to risers?a. Damage to risersb. Decreased pressurec. Easy removald. Increased cracking

8. What is an area with similar water needs called?a. Systemb. Unitc. Yardd. Zone

9. How much pressure do most main lines have?a. 5b. 10c. 15d. 30

Short Answer: Answer the following questions completely.

10. When planning an irrigation system, what are four factors that should be considered?a.

b.

c.

d.

11. Sally decided to test the water pressure at her home. It takes her 15 seconds to fill a one gallon bucket. What is the water pressure at her home? (Show work!)

12. Wayne decided to test the water pressure at his farm. It takes him 27 seconds to fill a five gallon bucket. What is the water pressure at his farm? (Show work!)

13. Explain the principle of head to head coverage and its benefits.

14. Which of the following sprinkler configurations would reduce the pressure in the main line most dramatically?

15. What is the process to properly join PVC pipe?

Bill of Materials: Calculate the price for the following repair project

Items needed:

20 feet of PVC 1 SST 1 SS Elbow 1 8” Riser 1 Sprinkler Head

Prices:

PVC= .29 per foot SST= .49 SS Elbow= .19 8” Riser= .72 Sprinkler Head= 4.32

16.

Description Quantity Price

Project Total=

Identification: For each of the tools/supplies write their name & purpose.

Common Tools & Supplies

Name Purpose

17. 18.

19. 20.

21. 22.

23. 24.

25. 26.

27. 28.