Texas Irrigator License Exam practice test 2023 Questions and Answers 100% Verified, With Images

Texas Irrigator License Exam practice test 2023 Questions
and Answers 100% Verified, With Images

Gear rotor model B




Spray with X nozzle




Spray with Y nozzle




Spray with Z nozzle




1" valve model Q

,Backflow device




Mainline pipe




Laterals pipe




House service pipe




Sleeves

,City main pipe




City meter




Controller




Legend

, To convert psi to feet
Multiply by 2.31




To convert feet to psi
Multiply by 0.433 psi




Precipitation Rate Formula
GPM (Full Circle Head) X 96.3
-------------- = PR
Head Spacing X Row Spacing (Divide)
Precipitation Rate for Drip
GPH (one emitter) X 231
------------ = PR
Head Spacing (inches) X Row Spacing (inches)
Runtime Formula
I x 60
RT ----=Runtime
PR
Calculating Drip Flow Zone
Total Linear feet of drip /emitter spacing x GPH of emitter/ 60 = GPM for that zone
Or DMDMD
Slope formula
Rise
S = -----------
Run
Triangular Head Spacing
Multiply spacing by .866 to get row spacing
Efficiency of System
Example if 50% efficiency with 1.12 Precipitation rate
Divide 1.12 by .50 to get 2.3/PR
Design Pressure