Texas Irrigator License Exam 2026-2027 Backflow questions ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
with verified detailed solutions ||\\//|| ||\\//|| ||\\//||
Air Gap - correct answer✔✔Gap through air between lowest point of water supply & flood
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level rim. ||\\//||
i.e. Sink water level & faucet
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Anti-Siphon Device - correct answer✔✔Any device that introduces air into the system to ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
prevent back siphonage. ||\\//|| ||\\//||
AVB (Atmospheric Vacuum Breaker) or PVB (Pressure-type Vacuum Breaker)
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Atmospheric Vacuum Breaker (AVB) - correct answer✔✔Blackflow device that allows air ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
with use of a float.
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Shape: Like an L ||\\//|| ||\\//|| ||\\//||
Back Pressure: No ||\\//|| ||\\//||
Constant Pressure: No more than 12 hrs in 24-hr period. ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
Install Height: Vertically with min of 6" higher than all downstream piping and highest
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downstream head. ||\\//||
Install: No shut-off valves downstream. Must be on discharge side of each control valve.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
with verified detailed solutions ||\\//|| ||\\//|| ||\\//||
Air Gap - correct answer✔✔Gap through air between lowest point of water supply & flood
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
level rim. ||\\//||
i.e. Sink water level & faucet
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
Anti-Siphon Device - correct answer✔✔Any device that introduces air into the system to ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
prevent back siphonage. ||\\//|| ||\\//||
AVB (Atmospheric Vacuum Breaker) or PVB (Pressure-type Vacuum Breaker)
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
Atmospheric Vacuum Breaker (AVB) - correct answer✔✔Blackflow device that allows air ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
with use of a float.
||\\//|| ||\\//|| ||\\//|| ||\\//||
Shape: Like an L ||\\//|| ||\\//|| ||\\//||
Back Pressure: No ||\\//|| ||\\//||
Constant Pressure: No more than 12 hrs in 24-hr period. ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
Install Height: Vertically with min of 6" higher than all downstream piping and highest
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
downstream head. ||\\//||
Install: No shut-off valves downstream. Must be on discharge side of each control valve.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
