TEXAS IRRIGATOR LICENSE EXAM WITH 100 ACTUAL EXAM QUESTIONS AND CORRECT VERIFIED ANSWERS (100 CORRECT ANSWERS) TCEQ IRRIGATOR LICENSE EXAM

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Absorption Rate/ Infiltration Rate - g g g g



ANSWER >>> The rate (or speed) at which soil will
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accept water. g




Actual Head Pressure -
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ANSWER >>> The operating pressure measured at
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the base of a sprinkler head. It must be equal to or
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greater than minimum head pressure to function c
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orrectly.

Formula: Static Pressure-Total Pressure Loss
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Air Relief Valve -
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ANSWER >>> Small device used on some drip irrig
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ation that allows air into the dripline when the syst
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em is not running which eliminates any vacuum th
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at could result in debris or contaminants being suc
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king into the line. g g g




Application Rate/Precipitation Rate - ANSWER g g g g



>>> Rate at which water is applied by sprinkler hea
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ds in a certain pattern. Measure in inches per hour
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s, gallons per hours, or gallons per day.
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Formula: 96.3 X Total GPM/ Total Area g g g g g g




Water Audit - g g



ANSWER >>> The most accurate method to evalua
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te precipitation rates. You will collect water using c
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atchment devices. g




Arc - g



ANSWER >>> The surface area of the landscape to
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which a sprinkler head will provide water. Describ
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ed in degrees or part of a full circle (360 degrees).
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Example: a 90 degree arc would be a quarter circle g g g g g g g g g g



head, a 180 degree arc would be a half circle head,
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a 360 degree arc would be a full circle head.
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As-Built Plan - g g



ANSWER >>> A corrected or redrawn plan showin
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g the "actual scaled" location of all major compone
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nts of the system and other information the prope
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rty owner might require. Zone valves are the most i
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mportant component to locate. g g g




Atmospheric Vacuum Breaker - g g g



gANSWER >>> A backflow prevention device that al g g g g g g g



lows air into the piping system, with the use of a flo
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at that moves up and down, to prevent backsiphon
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age. This is no longer allowed in Texas.
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Backflow - g



gANSWER >>> An unwanted reversal of the flow of g g g g g g g g g



water in a piping system which can potentially allo
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w non- g



potable water to pollute or contaminate the potab
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le water supply.
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Backpressure - g



gANSWER >>> Any condition that could create pres
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sure in the discharge side of the piping system that
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is greater than that of the supply side of the syste
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m. This can because by gravity (due to elevation) o
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r a pump.
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Backsiphonage - g



ANSWER >>> A form of backflow due to negative or
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sub-
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atmospheric pressure within the water system. Ca g g g g g g



used by a city main like break, or the fire departme
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nt using water nearby for a fire.
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Backflow Prevention Methods - g g g



ANSWER >>> 1. Air Gap
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2. Atmospheric Vacuum Breaker (Not allowed in g g g g g g



Texas)
3. Pressure Vacuum Breaker g g


4. Spill Resistant Pressure Vacuum Breaker
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5. Double Check Valve Assembly g g g



6. Reduced Pressure Principle Assembly g g g




Check Valve - g g



ANSWER >>> A valve which permits water to flow in
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