TCEQ IRRIGATION LICENSE STUDY GUIDE QUESTIONS WITH VERIFIED SOLUTIONS

TCEQ IRRIGATION LICENSE STUDY GUIDE QUESTIONS WITH VERIFIED SOLUTIONS BPA requirements for fertilizer injection systems - ANS Reduced Pressure Principle Assembly (RPPA) (RPZ) is required when fertilizer injections are being used. Causes backsiphonage? - ANS Caused by a negative or Sub-atmospheric pressure. Example-City departments are using fire hydrants or there's a city main line break, or someone sucking liquid from a glass using a straw. Causes of leaking check valve - ANS Debris-can enter the valve. (Can use Y strainer to provide a solution.) Definition of a high-hazard system? - ANS Non-potable water, chemicals, fertilizers Definition of cross-connection? - ANS Any actual or potential connection between a potable water supply and any source of contamination or pollution. Degree of hazard - ANS A measure of the degree of risk or harm to the public's health. General installation requirements of BPA - ANS Device must check/pass Back-siphonage, Back-pressure, constant pressure, non-health hazard, health hazard. Installation requirements of AVB - ANS -Installed 6" above the highest head or outlet in the system. -No Valves -Downstream. -Installed vertically. Installation and inspection requirements for public water system to BPA - ANS installation requirements of PVB - ANS 12" above the highest sprinkler head Vertically installed