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Texas Landscape Irrigation Exam Questions and Answers 100% Accurate
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Texas Landscape Irrigation Exam Questions and Answers 100% Accurate
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Texas Landscape Irrigation ExamQuestions and Answers 100% Accurate
Pressure compensating devices help save water because they? - -Help
eliminate misting or fogging at the sprinkler heads
-Landscape Irrigation - -The art and management of applying water to
landscape in a manner to encourage growth of plant material and support
water conservation
-Irrigation sensors - -(Measure rain, wind, soil moisture, and freeze) that
save water and eliminate liability issues concerning ice related accidents
during freeing weather
-Pressure Regulation Device - -Devices which eliminate misting or fogging
at the sprinkler heads, thus achieving better uniformity and saving water
-Hydrozoning - -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 - -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 - -The speed at which water can penetrate or infiltrate the
soil
-Actual Head Pressure - -The operating pressure measured at the base of a
sprinkler head.
-Actual head pressure formula - -(Static pressure) - (Total pressure lost) =
Actual head pressure
-air gap - -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? - -Kitchen sink
, -Application Rate (Precipitation rate) - -Rate at which water is applied by
sprinkler heads in a certain pattern.
-For irrigation contractors, water conservation starts with? - -A great design
-Three methods to evaluate application rate - -Densogram, Precipitation
rate formulas, Water audit
-The proper watering time is early morning because? - -Sprinkler patterns
are generally less distorted from the wind
-arc - -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? - -
Landscape Irrigation
-Atmospheric Vacuum Breaker (AVB) - -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 - -An electrical or hydraulic remote control valve in
a sprinkler system which is activated by an automatic controller
-Backflow - -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 - -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 - -A form of backflow due to negative or sub-atmospheric
pressure within water system.
-Backflow prevention methods - -Any approved device which prevents an
undesirable reversal of flow of water by the introduction of air, check valves,
or a combination of both.
-Backflow prevention devices - -Air Gap
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