TEXAS IRRIGATION TECHNICIAN
EXAM WITH CORRECT ANSWERS
2025
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
max flowrate for 3/4 in pipe (to stay below 5 fps) <correct answer>10 gpm
max flowrate for 1 in pipe (to stay below 5 fps) <correct answer>15 gpm
EXAM WITH CORRECT ANSWERS
2025
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
max flowrate for 3/4 in pipe (to stay below 5 fps) <correct answer>10 gpm
max flowrate for 1 in pipe (to stay below 5 fps) <correct answer>15 gpm
