Texas Landscape Irrigation Exam
Questions And Answers
Pressure compensating devices help save water because they? -
correct answer ✅Help eliminate misting or fogging at the sprinkler
heads
Landscape Irrigation -
correct 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 -
correct 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 -
correct answer ✅Devices which eliminate misting or fogging at the
sprinkler heads, thus achieving better uniformity and saving water
Hydrozoning -
correct 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
,Texas Landscape Irrigation Exam
Questions And Answers
Licensed landscape irrigators -
correct 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 -
correct answer ✅The speed at which water can penetrate or infiltrate
the soil
Actual Head Pressure -
correct answer ✅The operating pressure measured at the base of a
sprinkler head.
Actual head pressure formula -
correct answer ✅(Static pressure) - (Total pressure lost) = Actual head
pressure
air gap -
correct 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"
,Texas Landscape Irrigation Exam
Questions And Answers
Most common air gap? -
correct answer ✅Kitchen sink
Application Rate (Precipitation rate) -
correct answer ✅Rate at which water is applied by sprinkler heads in a
certain pattern.
For irrigation contractors, water conservation starts with? -
correct answer ✅A great design
Three methods to evaluate application rate -
correct answer ✅Densogram, Precipitation rate formulas, Water audit
The proper watering time is early morning because? -
correct answer ✅Sprinkler patterns are generally less distorted from
the wind
arc -
correct 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
, Texas Landscape Irrigation Exam
Questions And Answers
is? -
correct answer ✅Landscape Irrigation
Atmospheric Vacuum Breaker (AVB) -
correct 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 -
correct answer ✅An electrical or hydraulic remote control valve in a
sprinkler system which is activated by an automatic controller
Backflow -
correct 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 -
correct answer ✅Any condition that could create pressure in the
Questions And Answers
Pressure compensating devices help save water because they? -
correct answer ✅Help eliminate misting or fogging at the sprinkler
heads
Landscape Irrigation -
correct 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 -
correct 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 -
correct answer ✅Devices which eliminate misting or fogging at the
sprinkler heads, thus achieving better uniformity and saving water
Hydrozoning -
correct 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
,Texas Landscape Irrigation Exam
Questions And Answers
Licensed landscape irrigators -
correct 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 -
correct answer ✅The speed at which water can penetrate or infiltrate
the soil
Actual Head Pressure -
correct answer ✅The operating pressure measured at the base of a
sprinkler head.
Actual head pressure formula -
correct answer ✅(Static pressure) - (Total pressure lost) = Actual head
pressure
air gap -
correct 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"
,Texas Landscape Irrigation Exam
Questions And Answers
Most common air gap? -
correct answer ✅Kitchen sink
Application Rate (Precipitation rate) -
correct answer ✅Rate at which water is applied by sprinkler heads in a
certain pattern.
For irrigation contractors, water conservation starts with? -
correct answer ✅A great design
Three methods to evaluate application rate -
correct answer ✅Densogram, Precipitation rate formulas, Water audit
The proper watering time is early morning because? -
correct answer ✅Sprinkler patterns are generally less distorted from
the wind
arc -
correct 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
, Texas Landscape Irrigation Exam
Questions And Answers
is? -
correct answer ✅Landscape Irrigation
Atmospheric Vacuum Breaker (AVB) -
correct 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 -
correct answer ✅An electrical or hydraulic remote control valve in a
sprinkler system which is activated by an automatic controller
Backflow -
correct 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 -
correct answer ✅Any condition that could create pressure in the
