1|Page
TEXAS LANDSCAPE IRRIGATION EXAM LATEST
2024/2025 QUESTIONS AND CORRECT
ANSWERS(100% CORRECT VERIFIED
ANSWERS)ALREADY GRADED A+
Pressure compensating devices help save water because
they? - .....ANSWER ...✔✔ Help eliminate misting or
fogging at the sprinkler heads
Landscape Irrigation - .....ANSWER ...✔✔ The art and
management of applying water to landscape in a
manner to encourage growth of plant material and
support water conservation
Irrigation sensors - .....ANSWER ...✔✔ (Measure rain,
wind, soil moisture, and freeze) that save water and
eliminate liability issues concerning ice related accidents
during freeing weather
Pressure Regulation Device - .....ANSWER ...✔✔
Devices which eliminate misting or fogging at the
sprinkler heads, thus achieving better uniformity and
saving water
,2|Page
Hydrozoning - .....ANSWER ...✔✔ The practice of
zoning an irrigation system based on similar plant
material with similar watering reguirements due to
environmental and or geographic influences including,
but not limited to, soil type, slope, site orientation, and
solar radiation
Licensed landscape irrigators - .....ANSWER ...✔✔
Responsibility to educate, promote, support and practice
water conservation in the landscape irrigation industry in
order to preserve one of out most precious resources on
earth
Absorption Rate - .....ANSWER ...✔✔ The speed at
which water can penetrate or infiltrate the soil
Actual Head Pressure - .....ANSWER ...✔✔ The
operating pressure measured at the base of a sprinkler
head.
Actual head pressure formula - .....ANSWER ...✔✔
(Static pressure) - (Total pressure lost) = Actual head
pressure
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air gap - .....ANSWER ...✔✔ an approved Air gap is
the unobstructed vertical distance through free
atmosphere between the lowest point of a water supply
outlet and the flood 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? - .....ANSWER ...✔✔ Kitchen
sink
Application Rate (Precipitation rate) - .....ANSWER
...✔✔ Rate at which water is applied by sprinkler
heads in a certain pattern.
For irrigation contractors, water conservation starts with?
- .....ANSWER ...✔✔ A great design
Three methods to evaluate application rate -
.....ANSWER ...✔✔ Densogram, Precipitation rate
formulas, Water audit
The proper watering time is early morning because? -
.....ANSWER ...✔✔ Sprinkler patterns are generally
less distorted from the wind
, 4|Page
arc - .....ANSWER ...✔✔ Degrees of coverage of a
sprinkler from one side of a pattern to the other
The art and management of applying water to the
landscape to encourage the growth of plant material
and support water conservation is? - .....ANSWER
...✔✔ Landscape Irrigation
Atmospheric Vacuum Breaker (AVB) - .....ANSWER
...✔✔ 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 in one 24 hour window.
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.
Automatic control valve - .....ANSWER ...✔✔ An
electrical or hydraulic remote control valve in a sprinkler
system which is activated by an automatic controller
TEXAS LANDSCAPE IRRIGATION EXAM LATEST
2024/2025 QUESTIONS AND CORRECT
ANSWERS(100% CORRECT VERIFIED
ANSWERS)ALREADY GRADED A+
Pressure compensating devices help save water because
they? - .....ANSWER ...✔✔ Help eliminate misting or
fogging at the sprinkler heads
Landscape Irrigation - .....ANSWER ...✔✔ The art and
management of applying water to landscape in a
manner to encourage growth of plant material and
support water conservation
Irrigation sensors - .....ANSWER ...✔✔ (Measure rain,
wind, soil moisture, and freeze) that save water and
eliminate liability issues concerning ice related accidents
during freeing weather
Pressure Regulation Device - .....ANSWER ...✔✔
Devices which eliminate misting or fogging at the
sprinkler heads, thus achieving better uniformity and
saving water
,2|Page
Hydrozoning - .....ANSWER ...✔✔ The practice of
zoning an irrigation system based on similar plant
material with similar watering reguirements due to
environmental and or geographic influences including,
but not limited to, soil type, slope, site orientation, and
solar radiation
Licensed landscape irrigators - .....ANSWER ...✔✔
Responsibility to educate, promote, support and practice
water conservation in the landscape irrigation industry in
order to preserve one of out most precious resources on
earth
Absorption Rate - .....ANSWER ...✔✔ The speed at
which water can penetrate or infiltrate the soil
Actual Head Pressure - .....ANSWER ...✔✔ The
operating pressure measured at the base of a sprinkler
head.
Actual head pressure formula - .....ANSWER ...✔✔
(Static pressure) - (Total pressure lost) = Actual head
pressure
,3|Page
air gap - .....ANSWER ...✔✔ an approved Air gap is
the unobstructed vertical distance through free
atmosphere between the lowest point of a water supply
outlet and the flood 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? - .....ANSWER ...✔✔ Kitchen
sink
Application Rate (Precipitation rate) - .....ANSWER
...✔✔ Rate at which water is applied by sprinkler
heads in a certain pattern.
For irrigation contractors, water conservation starts with?
- .....ANSWER ...✔✔ A great design
Three methods to evaluate application rate -
.....ANSWER ...✔✔ Densogram, Precipitation rate
formulas, Water audit
The proper watering time is early morning because? -
.....ANSWER ...✔✔ Sprinkler patterns are generally
less distorted from the wind
, 4|Page
arc - .....ANSWER ...✔✔ Degrees of coverage of a
sprinkler from one side of a pattern to the other
The art and management of applying water to the
landscape to encourage the growth of plant material
and support water conservation is? - .....ANSWER
...✔✔ Landscape Irrigation
Atmospheric Vacuum Breaker (AVB) - .....ANSWER
...✔✔ 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 in one 24 hour window.
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.
Automatic control valve - .....ANSWER ...✔✔ An
electrical or hydraulic remote control valve in a sprinkler
system which is activated by an automatic controller
