Texas Irrigator Exam Questions and Correct
Answers
A properly designed irrigation system can:
a. save water, time, and money
b. save installation time
c. cost more
d. last longer Ans: — a. save water, time, and money
Basic irrigation dates back:
a. hundreds of years
b. since Rain Bird was founded
c. thousands of years
d. seventy-five years Ans: — c. thousands of years
The impact sprinkler head was introduced by Rain Bird in:
a. 1933
b. 1985
c. 1890
d. 1910 Ans: — a. 1933
Landscape irrigation, as we know it, has been around since:
a. the 1930's
b. since the development of PVC pipe
c. the beginning of time
d. the turn of the 20th century Ans: — d. the turn of the 20th
century
The issue of top priority in irrigation today is:
© 2025 All rights reserved
, 2 | Page
a. how to sell more systems in our present economy
b. new technology in back flow protection
c. water conservation
d. city and state regulations on licensing Ans: — c. water
conservation
The shortage of water is a result of:
a. water being a fixed resource
b. a decrease in the population
c. a decrease in water usage per person
d. larger sprinkler heads Ans: — a. water being a fixed resource
Possible solutions to the scarcity of water include:
a. allowing only rock and desert landscapes
b. watering only once a week
c. promoting Xeriscaping
d. limiting irrigation systems to commercial properties only Ans:
— c. promoting Xeriscaping
Which is not a possible solution for the scarcity of water?:
a. Xeriscaping
b. efficient landscape irrigation
c. construction of more dams
d. use of recycled water Ans: — c. construction of more dams
One of the seven basic landscaping principles of Xeriscaping is:
a. larger turf areas
b. only rock landscapes
c. soil removal
© 2025 All rights reserved
, 3 | Page
d. mulching Ans: — d. mulching
Efficient irrigation is geared more directly toward:
a. manufactures, irrigation contractors, homeowners, and proper
education
b. federal government
c. city government
d. state government Ans: — a. manufactures, irrigation
contractors, homeowners, and proper education
Manufactures can impact water conservation by producing:
a. products at a lower cost
b. better low-volume irrigation products
c. sizing components properly
d. more efficient irrigation scheduling Ans: — b. better low-volume
irrigation products
Which of the following is not a basic principle of Xeriscaping:
a. mulching
b. efficient irrigation
c. sizing components
d. proper maintenance Ans: — c. sizing components
Pressure compensating devices help save water because they:
a. keep the water pressure high enough for good coverage
b. compensate for the lack of a good decision
c. help eliminate misting or fogging at the sprinkler heads
d. allow for fewer heads, thus less water used Ans: — c. help
eliminate misting or fogging at the sprinkler heads
For irrigation contractors, water conservation starts with:
© 2025 All rights reserved
, 4 | Page
a. the proper back flow device
b. a great design
c. a good maintenance contract
d. the city irrigation regulations Ans: — b. a great design
The proper watering time is early morning because:
a. homeowners will not get water when leaving the house
b. the city inspectors will not see your system run longer than
allowed
c. sprinkler patters are generally less distorted from the wind
d. most homeowners don't want to see the water running Ans: —
c. sprinkler patterns are generally less distorted from the wind
The art and management of applying water to the landscape to
encourage the growth of plant material and support water
conservation is:
a. landscape irrigation
b. an irrigation system
c. an irrigation design
d. good for business and the environment Ans: — a. landscape
irrigation
the rate (or speed) at which soil will accept water. The speed at
which water can penetrate or infiltrate the soil. Also called
percolation or infiltration rate. As the soil "capacity" is reached,
the absorption rate will decrease. It is affected by soil type, slope,
run-off, etc. Different soil types absorb water at a different rate.
Ans: — absorption rate
the depth of soil in which a plant extracts most of the water it
needs for evapotranspiration Ans: — active root zone
The operating pressure measured at the base of a sprinkler head.
Actual head pressure is calculated by deducting total pressure
© 2025 All rights reserved