Texas Landscape Irrigation EXAM Questions and
Answers (Verified Answers) (Latest Update 2025)
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Terms in this set (208)
Pressure compensating Help eliminate misting or fogging at the sprinkler
devices help save water heads
because they?
The art and management of applying water to
Landscape Irrigation landscape in a manner to encourage growth of plant
material and support water conservation
(Measure rain, wind, soil moisture, and freeze) that
Irrigation sensors save water and eliminate liability issues concerning ice
related accidents during freeing weather
Devices which eliminate misting or fogging at the
Pressure Regulation
sprinkler heads, thus achieving better uniformity and
Device
saving water
The practice of zoning an irrigation system based on
similar plant material with similar watering
Hydrozoning reguirements due to environmental and or
geographic influences including, but not limited to,
soil type, slope, site orientation, and solar radiation
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,9/5/25, 11:48 PM Texas Landscape Irrigation EXAM Questions and Answers (Verified Answers) (Latest Update 2025) UPDATE!! Flashcards | Quizlet
Responsibility to educate, promote, support and
Licensed landscape practice water conservation in the landscape
irrigators irrigation industry in order to preserve one of out
most precious resources on earth
The speed at which water can penetrate or infiltrate
Absorption Rate
the soil
The operating pressure measured at the base of a
Actual Head Pressure
sprinkler head.
Actual head pressure (Static pressure) - (Total pressure lost) = Actual head
formula pressure
an approved Air gap is the unobstructed vertical
distance through free atmosphere between the
lowest point of a water supply outlet and the flood
air gap level rim of the fixture or assembly into which the
outlet discharges. Physical seperation must be at least
twice the diameter of the water supply outlet but
never less than 1"
Most common air gap? Kitchen sink
Application Rate Rate at which water is applied by sprinkler heads in a
(Precipitation rate) certain pattern.
For irrigation contractors, A great design
water conservation starts
with?
Three methods to Densogram, Precipitation rate formulas, Water audit
evaluate application rate
The proper watering time Sprinkler patterns are generally less distorted from
is early morning because? the wind
Degrees of coverage of a sprinkler from one side of a
arc
pattern to the other
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, 9/5/25, 11:48 PM Texas Landscape Irrigation EXAM Questions and Answers (Verified Answers) (Latest Update 2025) UPDATE!! Flashcards | Quizlet
The art and management Landscape Irrigation
of applying water to the
landscape to encourage
the growth of plant
material and support
water conservation is?
Backflow prevention device that
allows air into the piping system,
with the use of a float that
moves up and down, to prevent
backsiphonage.
Cannot be under constant
pressure for more than 12 hours
Atmospheric Vacuum
in one 24 hour window.
Breaker (AVB)
A minimum of 6" higher than all
down stream piping.
A separate AVB must be
installed on the discharge side
of each control valve, between
the valve and all emission
devices.
An electrical or hydraulic remote control valve in a
Automatic control valve sprinkler system which is activated by an automatic
controller
An unwanted reversal of the flow of water in a piping
Backflow system which can potentially allow non-potable water
to pollute or contaminate the potable water supply.
Any condition that could create pressure in the
Backpressure discharge side of the piping system that is greater
than that of the supply side of the system.
A form of backflow due to negative or sub-
Backsiphonage
atmospheric pressure within water system.
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