TEXAS IRRIGATOR LICENSE ACTUAL EXAM
PAPER 2026 COMPLETE QUESTIONS AND
SOLUTIONS CERTIFICATION READY
◉ Bushing
Answer: The pipe fitting used to change an irrigation component to a
larger or smaller size
◉ C-factor
Answer: Rating the smoothness inside of the pipe - higher the factor
translates to more smoothness
◉ Check Valve
Answer: A valve that allows flow in one direction only
◉ Class Pipe
Answer: Four classes used for piping and fittings receiving used
water from buildings. (Class 125-160-200-315)
Class 200 being the most common
◉ Control Wires
,Answer: The wire that transmits the signals from automatic
controller to automatic electric valves to open and close the valves.
◉ cross-connection
Answer: Any actual or potential connection between a potable water
supply and any source of contamination or pollution
◉ Design Pressure
Answer: Sum total of the desired head pressure added to the total of
all pressure losses.
Design Pressure=Minimum head pressure + Total of all pressure
losses
◉ Desired Head Pressure
Answer: The manufactures minimum recommended operating
pressure for a specific head.
◉ Densogram
Answer: Graphic representation of precipitation
◉ ID/OD
Answer: Inside diameter/Outside diameter
,◉ Direct burial wire
Answer: Any wire approved for direct underground burial without
conduit.
◉ Distribution Uniformity
Answer: measure the uniformity of irrigation water over an area
(Generally rotary heads have better uniformity than spray heads)
◉ Double Check Valve Assembly
Answer: Backflow prevention assembly, using two shut off valves
and two check valves assembled and pre-tested at the factory,
designed to physically block or prevent the backflow of water
◉ drip irrigation
Answer: a method of supplying irrigation water through tubes that
literally drip water onto the soil at the base of each plant. 48" or less
◉ Dry Line Shock (Dry Pipe Shock)
Answer: Travel of unrestricted water flow in empty piping
◉ Dynamic pressure
Answer: The force exerted by a fluid in motion
, ◉ Dynamic water
Answer: Water that is in motion through a system
◉ Elevation gain
Answer: Pressure gained as water is used downhill from its source
◉ Elevation lost
Answer: Pressure lost as water is used uphill from its source
◉ Emitters
Answer: Small mechanical device used in drip irrigation to limit
water flow to a drip or slow trickle
◉ Evaporation
Answer: The change of a substance from a liquid to a gas
◉ Evapotranspiration (ET)
Answer: loss of water by evaporation from the soil surface and
transpiration by plants
◉ FIP
PAPER 2026 COMPLETE QUESTIONS AND
SOLUTIONS CERTIFICATION READY
◉ Bushing
Answer: The pipe fitting used to change an irrigation component to a
larger or smaller size
◉ C-factor
Answer: Rating the smoothness inside of the pipe - higher the factor
translates to more smoothness
◉ Check Valve
Answer: A valve that allows flow in one direction only
◉ Class Pipe
Answer: Four classes used for piping and fittings receiving used
water from buildings. (Class 125-160-200-315)
Class 200 being the most common
◉ Control Wires
,Answer: The wire that transmits the signals from automatic
controller to automatic electric valves to open and close the valves.
◉ cross-connection
Answer: Any actual or potential connection between a potable water
supply and any source of contamination or pollution
◉ Design Pressure
Answer: Sum total of the desired head pressure added to the total of
all pressure losses.
Design Pressure=Minimum head pressure + Total of all pressure
losses
◉ Desired Head Pressure
Answer: The manufactures minimum recommended operating
pressure for a specific head.
◉ Densogram
Answer: Graphic representation of precipitation
◉ ID/OD
Answer: Inside diameter/Outside diameter
,◉ Direct burial wire
Answer: Any wire approved for direct underground burial without
conduit.
◉ Distribution Uniformity
Answer: measure the uniformity of irrigation water over an area
(Generally rotary heads have better uniformity than spray heads)
◉ Double Check Valve Assembly
Answer: Backflow prevention assembly, using two shut off valves
and two check valves assembled and pre-tested at the factory,
designed to physically block or prevent the backflow of water
◉ drip irrigation
Answer: a method of supplying irrigation water through tubes that
literally drip water onto the soil at the base of each plant. 48" or less
◉ Dry Line Shock (Dry Pipe Shock)
Answer: Travel of unrestricted water flow in empty piping
◉ Dynamic pressure
Answer: The force exerted by a fluid in motion
, ◉ Dynamic water
Answer: Water that is in motion through a system
◉ Elevation gain
Answer: Pressure gained as water is used downhill from its source
◉ Elevation lost
Answer: Pressure lost as water is used uphill from its source
◉ Emitters
Answer: Small mechanical device used in drip irrigation to limit
water flow to a drip or slow trickle
◉ Evaporation
Answer: The change of a substance from a liquid to a gas
◉ Evapotranspiration (ET)
Answer: loss of water by evaporation from the soil surface and
transpiration by plants
◉ FIP
