Backflow Prevention Assembly 2025/26
Questions & Answers Graded A+
In responding to a backflow incident the water purveyor should
(A) Call the mayor
(B) Implement the emergency response plan
(C) Install a vacuum breaker
(D) Develop a good excuse
Implement the emergency response plan
A mixture of air and gas is considered hazardous when the mixture exceeds
what percentage of gthe lower explosive limit
(A) 0%
(B) 3%
(C) 7%
(D) 10%
10%
To exert a pressure of 1.0 psi at base of a water column the column would
have to be
(A) 4.34 high
(B) 14.7 high
(C) 27.75 high
(D) 33.89 high
27.75 high
,A DC must be tested
(A) Upon installation
(B) Every 6 month
(C) Annually on a health hazard
(D) none of the above
Upon installation
An absolute perssure of 25 psiaa (at sea level) is equal to approximately
(A) 5 psi
(B) 10 psi
(C) 20 psi
(D) 25 psi
10 psi
Dueing a field test the air inlet on PVB must open at
(A) Above 2.0 psid
(B) Below 1.0 psid
(C) Above 1.0 psid
(D) Below 2.0 psid
Above 1.0 psid
A differential pressuer gauge is used to field test
(A) PVB's
(B) Dual Checks
(C) AVB's
(D) All the above
, PVB's
Backflow in a water supply can be caused by
(A) Backpressure only
(B) A Barometric Loop
(C) Backsiphonage only
(D) Backpressure and Backsiphonage
Backpressure and Backsiphonage
A BPAT tester is required to report test information on the proper forms to
the
(A) Administrative authority
(B) Manufacturer's Rep
(C) EPA
(D) None of the above
Administrative authority
The relief valve opens when closing #2 shut off valve on a RP What is the most
probable cause
(A) #1 Shut off valve is open
(B) #2 Shut off valve is open
(C) #1 check is fouled open
(D) Shut off is leaking
#1 check is fouled open
When field testing the #1 Check of a RP the differential pressurw shouid be
(A) Greter than or equal to 5.0 psid
Questions & Answers Graded A+
In responding to a backflow incident the water purveyor should
(A) Call the mayor
(B) Implement the emergency response plan
(C) Install a vacuum breaker
(D) Develop a good excuse
Implement the emergency response plan
A mixture of air and gas is considered hazardous when the mixture exceeds
what percentage of gthe lower explosive limit
(A) 0%
(B) 3%
(C) 7%
(D) 10%
10%
To exert a pressure of 1.0 psi at base of a water column the column would
have to be
(A) 4.34 high
(B) 14.7 high
(C) 27.75 high
(D) 33.89 high
27.75 high
,A DC must be tested
(A) Upon installation
(B) Every 6 month
(C) Annually on a health hazard
(D) none of the above
Upon installation
An absolute perssure of 25 psiaa (at sea level) is equal to approximately
(A) 5 psi
(B) 10 psi
(C) 20 psi
(D) 25 psi
10 psi
Dueing a field test the air inlet on PVB must open at
(A) Above 2.0 psid
(B) Below 1.0 psid
(C) Above 1.0 psid
(D) Below 2.0 psid
Above 1.0 psid
A differential pressuer gauge is used to field test
(A) PVB's
(B) Dual Checks
(C) AVB's
(D) All the above
, PVB's
Backflow in a water supply can be caused by
(A) Backpressure only
(B) A Barometric Loop
(C) Backsiphonage only
(D) Backpressure and Backsiphonage
Backpressure and Backsiphonage
A BPAT tester is required to report test information on the proper forms to
the
(A) Administrative authority
(B) Manufacturer's Rep
(C) EPA
(D) None of the above
Administrative authority
The relief valve opens when closing #2 shut off valve on a RP What is the most
probable cause
(A) #1 Shut off valve is open
(B) #2 Shut off valve is open
(C) #1 check is fouled open
(D) Shut off is leaking
#1 check is fouled open
When field testing the #1 Check of a RP the differential pressurw shouid be
(A) Greter than or equal to 5.0 psid
