TEXAS IRRIGATOR LICENSE
CERTIFICATION PREP STUDY GUIDE
GUARANTEED TO PASS
◉ 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
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"
,◉ 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
, ◉ 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.
◉ Backsiphonage
CERTIFICATION PREP STUDY GUIDE
GUARANTEED TO PASS
◉ 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
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"
,◉ 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
, ◉ 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.
◉ Backsiphonage
