2025
TEXAS LANDSCAPE IRRIGATION EXAM 2025 WITH GUARANTEED ACCURATE
ANSWERS
Pressure compensating devices help save water because they? -
ACCURATE ANSWERS✔✔ Help eliminate misting or fogging at the
sprinkler heads
Landscape Irrigation - ACCURATE ANSWERS✔✔ The art and
management of applying water to landscape in a manner to encourage
growth of plant material and support water conservation
Irrigation sensors - ACCURATE ANSWERS✔✔ (Measure rain, wind,
soil moisture, and freeze) that save water and eliminate liability issues
concerning ice related accidents during freeing weather
,Pressure Regulation Device - ACCURATE ANSWERS✔✔ Devices
which eliminate misting or fogging at the sprinkler heads, thus achieving
better uniformity and saving water
Hydrozoning - ACCURATE ANSWERS✔✔ 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 - ACCURATE ANSWERS✔✔
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 - ACCURATE ANSWERS✔✔ The speed at which
water can penetrate or infiltrate the soil
Actual Head Pressure - ACCURATE ANSWERS✔✔ The operating
pressure measured at the base of a sprinkler head.
Actual head pressure formula - ACCURATE ANSWERS✔✔ (Static
pressure) - (Total pressure lost) = Actual head pressure
air gap - ACCURATE ANSWERS✔✔ 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? - ACCURATE ANSWERS✔✔ Kitchen sink
Application Rate (Precipitation rate) - ACCURATE ANSWERS✔✔
Rate at which water is applied by sprinkler heads in a certain pattern.
For irrigation contractors, water conservation starts with? - ACCURATE
ANSWERS✔✔ A great design
Three methods to evaluate application rate - ACCURATE
ANSWERS✔✔ Densogram, Precipitation rate formulas, Water audit
The proper watering time is early morning because? - ACCURATE
ANSWERS✔✔ Sprinkler patterns are generally less distorted from the
wind
arc - ACCURATE ANSWERS✔✔ 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? - ACCURATE ANSWERS✔✔ Landscape Irrigation
Atmospheric Vacuum Breaker (AVB) - ACCURATE ANSWERS✔✔
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 - ACCURATE ANSWERS✔✔ An electrical or
hydraulic remote control valve in a sprinkler system which is activated
by an automatic controller
Backflow - ACCURATE ANSWERS✔✔ 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 - ACCURATE ANSWERS✔✔ 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.