TEXAS IRRIGATION STUDY EXAM SCRIPT 2026
COMPLETE QUESTIONS AND ANSWERS
◉ 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
COMPLETE QUESTIONS AND ANSWERS
◉ 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
