Texas Irrigator License Study Guide questions and answers 2024/2025

Texas Irrigator License Study Guide Absorption Rate/ Infiltration Rate - correct answer The rate (or speed) at which soil will accept water. Actual Head Pressure - correct answer The operating pressure measured at the base of a sprinkler head. It must be equal to or greater than minimum head pressure to function correctly. Formula: Static Pressure-Total Pressure Loss Air Relief Valve - correct answer Small device used on some drip irrigation that allows air into the dripline when the system is not running which eliminates any vacuum that could result in debris or contaminants being sucking into the line. Application Rate/Precipitation Rate - correct answer Rate at which water is applied by sprinkler heads in a certain pattern. Measure in inches per hours, gallons per hours, or gallons per day. Formula: 96.3 X Total GPM/ Total Area Water Audit - correct answer The most accurate method to evaluate precipitation rates. You will collect water using catchment devices. Arc - correct answer The surface area of the landscape to which a sprinkler head will provide water. Described in degrees or part of a full circle (360 degrees). Example: a 90 degree arc would be a quarter circle head, a 180 degree arc would be a half circle head, a 360 degree arc would be a full circle head.