TCEQ IRRIGATION LICENSE STUDY
GUIDE 100% CORRECT!!
BPA requirements for fertilizer injection system - ANSWERReduced Pressure Principle Assembly
(RPPA) (RPZ) is required when fertilizer injection are being used.
Causes backsiphonage? - ANSWERCaused by a negative or Sub-atmospheric pressure. Example-City
departments are using fire hydrant or there's a city main line break, or someone sucking liquid from
a glass using a straw.
Causes of leaking check valve - ANSWERDebris-can enter the valve. (Can use Y strainer to provide a
solution.)
Definition of high-hazard system? - ANSWERNon-potable water, chemicals, fertilizers
Definition of cross-connection? - ANSWERAny actual or potential connection between a potable
water supply and any source of contamination or pollution.
Degree of hazard - ANSWERA measure of the degree of risk or harm to the public's health.
General installation requirements of BPA - ANSWERDevice must check/pass Back-siphonage, Back-
pressure, constant pressure, non-health hazard, health hazard.
Installation requirements of AVB - ANSWER-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 - ANSWER
installation requirements of PVB - ANSWER12" above the highest sprinkler head
Vertically installed
Installation requirments of RPZ - ANSWER12" above ground
Installation requirements of DCV - ANSWERHorizontal or Vertical above or below ground.
Limits of Double check valve - ANSWERIs a high hazard/health hazard *
Limits of AVB - ANSWERCan not handle more than 12 hours of constant pressure, not approved by
the state of Texas, does not protect against back-pressure.
purpose of test cocks on DCV - ANSWERto test check valves and flush
purpose of shut off-valves on PVB - ANSWERTo test and winterize
Required back flow prevention system for booster pump - ANSWERRPZ to prevent constant back flow
GUIDE 100% CORRECT!!
BPA requirements for fertilizer injection system - ANSWERReduced Pressure Principle Assembly
(RPPA) (RPZ) is required when fertilizer injection are being used.
Causes backsiphonage? - ANSWERCaused by a negative or Sub-atmospheric pressure. Example-City
departments are using fire hydrant or there's a city main line break, or someone sucking liquid from
a glass using a straw.
Causes of leaking check valve - ANSWERDebris-can enter the valve. (Can use Y strainer to provide a
solution.)
Definition of high-hazard system? - ANSWERNon-potable water, chemicals, fertilizers
Definition of cross-connection? - ANSWERAny actual or potential connection between a potable
water supply and any source of contamination or pollution.
Degree of hazard - ANSWERA measure of the degree of risk or harm to the public's health.
General installation requirements of BPA - ANSWERDevice must check/pass Back-siphonage, Back-
pressure, constant pressure, non-health hazard, health hazard.
Installation requirements of AVB - ANSWER-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 - ANSWER
installation requirements of PVB - ANSWER12" above the highest sprinkler head
Vertically installed
Installation requirments of RPZ - ANSWER12" above ground
Installation requirements of DCV - ANSWERHorizontal or Vertical above or below ground.
Limits of Double check valve - ANSWERIs a high hazard/health hazard *
Limits of AVB - ANSWERCan not handle more than 12 hours of constant pressure, not approved by
the state of Texas, does not protect against back-pressure.
purpose of test cocks on DCV - ANSWERto test check valves and flush
purpose of shut off-valves on PVB - ANSWERTo test and winterize
Required back flow prevention system for booster pump - ANSWERRPZ to prevent constant back flow
