TEXAS IRRIGATOR LICENSE EXAM TEXAS
RULES AND REGULATIONS STUDY GUIDE
2026 UPDATED QUESTIONS WITH
VERIFIED ANSWERS GRADED A+
⩥ ET-based controllers regulate the irrigation schedule based on what?
Answer: Evapotranspiration
⩥ How can run-off problems be solved when watering 30 minutes three
times a week?
Answer: Water 15 minutes three times a week
⩥ How often should you water to save water?
Answer: Two times a week
⩥ What type of sensor prevents liability issues from ice?
Answer: Freeze sensor
⩥ How many members are on the irrigator advisory council?
Answer: 9, 5, and 4
⩥ What must wiring be for direct underground burial?
,Answer: UL listed
⩥ What statement must be included in irrigation contracts?
Answer: Irrigation in Texas is regulated by the Texas Commission on
Environmental Quality.
⩥ How many CEU hours are needed to renew a licensed irrigator's
license?
Answer: 8 hours
⩥ How do members of the irrigator advisory council get their position?
Answer: Appointed by the Governor
⩥ What can a Texas licensed irrigator not do?
Answer: Install a backflow device
⩥ What should you do before installing an irrigation system?
Answer: Call 811 to locate buried lines
⩥ What does the solvent welding process include?
Answer: All of the above
, ⩥ What is an isolation valve used for?
Answer: Allows for repairs without shutting the water off
⩥ What is the piping between the backflow device and the zone valves
called?
Answer: Service line
⩥ What is the piping between the zone valves and the sprinkler heads
called?
Answer: Lateral piping
⩥ Which of the following is not acceptable?
Answer: Threading a plastic fitting into a metal fitting
⩥ What happens if two different types of metal pipes are connected
together?
Answer: Electrolysis
⩥ What is the science of applying water to promote plant growth?
Answer: Landscape irrigation
⩥ What must an irrigation contractor furnish upon completion?
Answer: A written warranty covering materials and labor
RULES AND REGULATIONS STUDY GUIDE
2026 UPDATED QUESTIONS WITH
VERIFIED ANSWERS GRADED A+
⩥ ET-based controllers regulate the irrigation schedule based on what?
Answer: Evapotranspiration
⩥ How can run-off problems be solved when watering 30 minutes three
times a week?
Answer: Water 15 minutes three times a week
⩥ How often should you water to save water?
Answer: Two times a week
⩥ What type of sensor prevents liability issues from ice?
Answer: Freeze sensor
⩥ How many members are on the irrigator advisory council?
Answer: 9, 5, and 4
⩥ What must wiring be for direct underground burial?
,Answer: UL listed
⩥ What statement must be included in irrigation contracts?
Answer: Irrigation in Texas is regulated by the Texas Commission on
Environmental Quality.
⩥ How many CEU hours are needed to renew a licensed irrigator's
license?
Answer: 8 hours
⩥ How do members of the irrigator advisory council get their position?
Answer: Appointed by the Governor
⩥ What can a Texas licensed irrigator not do?
Answer: Install a backflow device
⩥ What should you do before installing an irrigation system?
Answer: Call 811 to locate buried lines
⩥ What does the solvent welding process include?
Answer: All of the above
, ⩥ What is an isolation valve used for?
Answer: Allows for repairs without shutting the water off
⩥ What is the piping between the backflow device and the zone valves
called?
Answer: Service line
⩥ What is the piping between the zone valves and the sprinkler heads
called?
Answer: Lateral piping
⩥ Which of the following is not acceptable?
Answer: Threading a plastic fitting into a metal fitting
⩥ What happens if two different types of metal pipes are connected
together?
Answer: Electrolysis
⩥ What is the science of applying water to promote plant growth?
Answer: Landscape irrigation
⩥ What must an irrigation contractor furnish upon completion?
Answer: A written warranty covering materials and labor
