TEXAS IRRIGATOR LICENSE TEST 2026
VERIFIED QUESTIONS AND ANSWERS PASS
GUIDE
◉ Nozzle Tree
Answer: Interchangeable nozzle assortment, with different GPM and
radii, provided with many rotary heads
◉ POC
Answer: Point of connection
◉ Polyethylene Pipe (PE)
Answer: Flexible plastic pipe which uses insert fittings.
◉ Potable water
Answer: water that is safe to drink
◉ Precipitation rate
Answer: Precipitation rate (PR) is a calculation of the flow rate
(application rate) over the square footage of the zone. 96.25 =
constant that converts gallons per minute (GPM) to inches per hour.
,◉ Pressure compensating
Answer: A method of maintaining a constant discharge pressure
regardless of inlet pressure.
◉ Pressure Regulator
Answer: Mechanical device that lowers water pressure on the
downstream side of the unit.
◉ Pressure Vacuum Breaker
Answer: A backflow prevention assembly that incorporates a spring-
loaded check valve and introduces air into the system to prevent
"back siphonage"
◉ P.S.I.
Answer: Pounds per square inch
◉ PVC pipe
Answer: Poly vinyl chloride pipe.
◉ Quick Coupler Valve
Answer: A constantly pressurized valve set vertically in the ground
to provide supplemental water when a coupler key is inserted.
, ◉ Radius
Answer: The distance from the center of a circle to any point on the
circle
◉ Reduced pressure principle device (RP,RPZ, or RPP)
Answer: Backflow prevention device that consist of two
independently acting check valves, together with an automatic
operating pressure differential relief valve located between the two
check valves.
◉ Rotary heads
Answer: Sprinkler heads that use the energy of the water to rotate
the sprinkler. Most common heads are impact, gear and ball driven
heads.
◉ Run-off
Answer: water that is not absorbed into the ground, instead flows
into streams or other collection areas
◉ Saddle
Answer: A type of fitting which attaches around the pipe
◉ Scheduling
VERIFIED QUESTIONS AND ANSWERS PASS
GUIDE
◉ Nozzle Tree
Answer: Interchangeable nozzle assortment, with different GPM and
radii, provided with many rotary heads
◉ POC
Answer: Point of connection
◉ Polyethylene Pipe (PE)
Answer: Flexible plastic pipe which uses insert fittings.
◉ Potable water
Answer: water that is safe to drink
◉ Precipitation rate
Answer: Precipitation rate (PR) is a calculation of the flow rate
(application rate) over the square footage of the zone. 96.25 =
constant that converts gallons per minute (GPM) to inches per hour.
,◉ Pressure compensating
Answer: A method of maintaining a constant discharge pressure
regardless of inlet pressure.
◉ Pressure Regulator
Answer: Mechanical device that lowers water pressure on the
downstream side of the unit.
◉ Pressure Vacuum Breaker
Answer: A backflow prevention assembly that incorporates a spring-
loaded check valve and introduces air into the system to prevent
"back siphonage"
◉ P.S.I.
Answer: Pounds per square inch
◉ PVC pipe
Answer: Poly vinyl chloride pipe.
◉ Quick Coupler Valve
Answer: A constantly pressurized valve set vertically in the ground
to provide supplemental water when a coupler key is inserted.
, ◉ Radius
Answer: The distance from the center of a circle to any point on the
circle
◉ Reduced pressure principle device (RP,RPZ, or RPP)
Answer: Backflow prevention device that consist of two
independently acting check valves, together with an automatic
operating pressure differential relief valve located between the two
check valves.
◉ Rotary heads
Answer: Sprinkler heads that use the energy of the water to rotate
the sprinkler. Most common heads are impact, gear and ball driven
heads.
◉ Run-off
Answer: water that is not absorbed into the ground, instead flows
into streams or other collection areas
◉ Saddle
Answer: A type of fitting which attaches around the pipe
◉ Scheduling
