Texas Irrigator License Exam 2020: General Knowledge (Terms & Basics)fully solved

Texas Irrigator License Exam 2020: General Knowledge (Terms & Basics)Air/Vacuum Relief Valve - correct answer Device on drip that allows air into the line to eliminate any vacuum when the system isn't running. Prevents debris from being sucked into the pipe and deters rodents & roots from clogging emitters because no water is present. Place at highest point on drip zone. Absorption Rate (Percolation Rate or Infiltration Rate) - correct answer Rate or speed that soil will accept water. Affected by soil type, slope, run-off. Sand fast, loam medium, clay slow. Managed Allowable Depletion (AD or MAD) - correct answer Amount of water allowed to be depleted from plant available water before an irrigation event is scheduled.