TEXAS IRRIGATION TEST 2 CERTIFICATION
EVALUATION EXAMS 2026 COMPLETE
QUESTIONS AND ANSWERS GUARANTEED TO
PASS
◉ max flowrate for 1/2 in pipe (to stay below 5 fps)
Answer: 5 gpm
◉ max flowrate for 3/4 in pipe (to stay below 5 fps)
Answer: 10 gpm
◉ max flowrate for 1 in pipe (to stay below 5 fps)
Answer: 15 gpm
◉ max flowrate 1 1/4 in. pipe (to stay below 5 fps)
Answer: 25 gpm
◉ max flowrate for 1 1/2 in pipe (to stay below 5 fps)
Answer: 35 gpm
, ◉ Key requirement for RPZ backflow
Answer: minimum of 12" above grade
◉ Key requirement for Double Check backflow (DCVA)
Answer: If installed below grade, Test cocks must be plugged with
non-ferrous (non-magnetic) material
◉ Key requirements for PVB and SVB
Answer: Must be 12" above highest head, valve, pipe, fitting, or
fixture
◉ Key requirements for Air Gap
Answer: The recieving pipe must be 1" wider or 2 times bigger than
the discharge pipe
◉ zone flow
Answer: how many gallons go through a zone
◉ Backflow Prevention Assembly
Answer: Any assembly used to prevent backflow into a potable
water system. The type of assembly used is based on the existing or
potential degree of health hazard and backflow condition.
EVALUATION EXAMS 2026 COMPLETE
QUESTIONS AND ANSWERS GUARANTEED TO
PASS
◉ max flowrate for 1/2 in pipe (to stay below 5 fps)
Answer: 5 gpm
◉ max flowrate for 3/4 in pipe (to stay below 5 fps)
Answer: 10 gpm
◉ max flowrate for 1 in pipe (to stay below 5 fps)
Answer: 15 gpm
◉ max flowrate 1 1/4 in. pipe (to stay below 5 fps)
Answer: 25 gpm
◉ max flowrate for 1 1/2 in pipe (to stay below 5 fps)
Answer: 35 gpm
, ◉ Key requirement for RPZ backflow
Answer: minimum of 12" above grade
◉ Key requirement for Double Check backflow (DCVA)
Answer: If installed below grade, Test cocks must be plugged with
non-ferrous (non-magnetic) material
◉ Key requirements for PVB and SVB
Answer: Must be 12" above highest head, valve, pipe, fitting, or
fixture
◉ Key requirements for Air Gap
Answer: The recieving pipe must be 1" wider or 2 times bigger than
the discharge pipe
◉ zone flow
Answer: how many gallons go through a zone
◉ Backflow Prevention Assembly
Answer: Any assembly used to prevent backflow into a potable
water system. The type of assembly used is based on the existing or
potential degree of health hazard and backflow condition.
