answers 2026\2027 A+ Grade
Who composes the Irrigator Council?
- correct answer 6 Irrigators, 3 Public members, all from the same state
What is the purpose of the Irrigator Council?
- correct answer Provide advice on matters concerning irrigation
Possible consequence of installing a system w/o a license?
- correct answer Being charged with a Class C misdemeanor
Absorption Rate
- correct answer How fast a rate at which the soil will accept water
Actual Head Pressure
- correct answer The operating pressure measured at the base of a sprinkler head
How to CALCULATE Actual head pressure?
- correct answer subtract all pressure losses from static pressure
air gap
- correct answer A complete physical separation between the free flowing discharge end of a potable
water supply pipeline and an open or non-pressure recieveing vessel
Application Rate
- correct answer Rate that a head applies water to the area it's spraying
What term is Application rate synonymous with?
- correct answer Precipitation Rate
, Arc
- correct answer The surface area of the landscape that the head will provide water (half, full, 90, 25)
as-built plans
- correct answer A corrected or redrawn plan, showing location of all major components of a system
A.W.W.A.
- correct answer American Water Works Association
Backflow
- correct answer The UNDESIREABLE reverse flow of water in a piping system
Back pressure
- correct answer Condition that can happen due to elevation pumps, pressure
Back siphonage
- correct answer backflow due to a sub atomic pressure (break in city main, fire hydrant being used
Backflow prevention
- correct answer A mechanical means to prevent a backflow
A backflow device
- correct answer Any approved device that prevents an undesireable reversal of flow of water
1 column foot of water
- correct answer .443 psi (pretty close to 5 ft.
1 psi
- correct answer requires a column of water 2.31 feet tall (or 3 ft.) (or 27.75 in.)
max flowrate for 1/2 in pipe (to stay below 5 fps)
- correct answer 5 gpm