Texas Landscape Irrigation Exam Practice
Questions and Answers 100% Pass
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
Hydrozoning - ANSWER✔✔-The practice of zoning an irrigation system
based on similar plant material with similar watering reguirements due to
Copyright ©EMILLYCHARLOTE 2025 ACADEMIC YEAR, ALL RIGHTS RESERVED. Page 1/31
,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
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"
Copyright ©EMILLYCHARLOTE 2025 ACADEMIC YEAR, ALL RIGHTS RESERVED. Page 2/31
,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
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
Copyright ©EMILLYCHARLOTE 2025 ACADEMIC YEAR, ALL RIGHTS RESERVED. Page 3/31
, 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
Backflow - ANSWER✔✔-An unwanted reversal of the flow of water in a
piping system which can potentially allow non-potable water to pollute or
contaminate the potable water supply.
Backpressure - ANSWER✔✔-Any condition that could create pressure in
the discharge side of the piping system that is greater than that of the
supply side of the system.
Copyright ©EMILLYCHARLOTE 2025 ACADEMIC YEAR, ALL RIGHTS RESERVED. Page 4/31
Questions and Answers 100% Pass
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
Hydrozoning - ANSWER✔✔-The practice of zoning an irrigation system
based on similar plant material with similar watering reguirements due to
Copyright ©EMILLYCHARLOTE 2025 ACADEMIC YEAR, ALL RIGHTS RESERVED. Page 1/31
,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
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"
Copyright ©EMILLYCHARLOTE 2025 ACADEMIC YEAR, ALL RIGHTS RESERVED. Page 2/31
,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
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
Copyright ©EMILLYCHARLOTE 2025 ACADEMIC YEAR, ALL RIGHTS RESERVED. Page 3/31
, 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
Backflow - ANSWER✔✔-An unwanted reversal of the flow of water in a
piping system which can potentially allow non-potable water to pollute or
contaminate the potable water supply.
Backpressure - ANSWER✔✔-Any condition that could create pressure in
the discharge side of the piping system that is greater than that of the
supply side of the system.
Copyright ©EMILLYCHARLOTE 2025 ACADEMIC YEAR, ALL RIGHTS RESERVED. Page 4/31
