TEXAS LANDSCAPE IRRIGATION QUESTIONS |
TESTED AND PROVEN ANSWERS | LATEST UPDATE
2024/2025 100% (GRADE A+)
Pressure compensating devices help save water because they?
Ans>> Help eliminate misting or fogging at the sprinkler heads
Landscape Irrigation
Ans>> The art and management of applying water to landscape in a manner to encourage
growth of plant material and support water conservation
Irrigation sensors
Ans>> (Measure rain, wind, soil moisture, and freeze) that save water and eliminate liability
issues concerning ice related accidents during freeing weather
Pressure Regulation Device
Ans>> Devices which eliminate misting or fogging at the sprinkler heads, thus achieving better
uniformity and saving water
1
,Hydrozoning
Ans>> 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
Ans>> 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
Ans>> The speed at which water can penetrate or infiltrate the soil
Actual Head Pressure
Ans>> The operating pressure measured at the base of a sprinkler head.
Actual head pressure formula
Ans>> (Static pressure) - (Total pressure lost) = Actual head pressure
2
,air gap
Ans>> 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?
Ans>> Kitchen sink
Application Rate (Precipitation rate)
Ans>> Rate at which water is applied by sprinkler heads in a certain pattern.
For irrigation contractors, water conservation starts with?
Ans>> A great design
Three methods to evaluate application rate
Ans>> Densogram, Precipitation rate formulas, Water audit
3
, The proper watering time is early morning because?
Ans>> Sprinkler patterns are generally less distorted from the wind
arc
Ans>> 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?
Ans>> Landscape Irrigation
Atmospheric Vacuum Breaker (AVB)
Ans>> 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.
4
TESTED AND PROVEN ANSWERS | LATEST UPDATE
2024/2025 100% (GRADE A+)
Pressure compensating devices help save water because they?
Ans>> Help eliminate misting or fogging at the sprinkler heads
Landscape Irrigation
Ans>> The art and management of applying water to landscape in a manner to encourage
growth of plant material and support water conservation
Irrigation sensors
Ans>> (Measure rain, wind, soil moisture, and freeze) that save water and eliminate liability
issues concerning ice related accidents during freeing weather
Pressure Regulation Device
Ans>> Devices which eliminate misting or fogging at the sprinkler heads, thus achieving better
uniformity and saving water
1
,Hydrozoning
Ans>> 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
Ans>> 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
Ans>> The speed at which water can penetrate or infiltrate the soil
Actual Head Pressure
Ans>> The operating pressure measured at the base of a sprinkler head.
Actual head pressure formula
Ans>> (Static pressure) - (Total pressure lost) = Actual head pressure
2
,air gap
Ans>> 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?
Ans>> Kitchen sink
Application Rate (Precipitation rate)
Ans>> Rate at which water is applied by sprinkler heads in a certain pattern.
For irrigation contractors, water conservation starts with?
Ans>> A great design
Three methods to evaluate application rate
Ans>> Densogram, Precipitation rate formulas, Water audit
3
, The proper watering time is early morning because?
Ans>> Sprinkler patterns are generally less distorted from the wind
arc
Ans>> 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?
Ans>> Landscape Irrigation
Atmospheric Vacuum Breaker (AVB)
Ans>> 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.
4
