BACKFLOW PREVENTION ASSEMBLY TESTER
PRACTICE EXAM GRADED A+ 2025
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 -Correct Answers ✔-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% -Correct Answers ✔-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 -Correct Answers ✔-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 -Correct Answers ✔-Upon installation
An absolute perssure of 25 psiaa (at sea level) is equal to approximately
(A) 5 psi
(B) 10 psi
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,Backflow Prevention Assembly Tester Training
(C) 20 psi
(D) 25 psi -Correct Answers ✔-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 -Correct Answers ✔-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 -Correct Answers ✔-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 -Correct Answers ✔-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 -Correct Answers ✔-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 -Correct Answers ✔-#1 check is fouled open
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When field testing the #1 Check of a RP the differential pressurw shouid be
(A) Greter than or equal to 5.0 psid
(B) 3.0 psid greater than the relief valve opening point
(C) 1.0 psid in the directiom of flow
(D) Less than 5.0 psid -Correct Answers ✔-Greter than or equal to 5.0 psid
When testing a SVB what is the firsrt test being performed
(A) The air inlet opening point
(B) The static pressure across the check valve
(C) To verify the #2shut off hold tight
(D) To check if the SVB hold water -Correct Answers ✔-The static pressure across
the check valve
When testing a PVB the air inlet opens upon closing the #1 shut off valve What is
the most probable cause
(A) Leaking #2 shut off valve
(B) Leaking #1 shut off valve
(C) Fouied air inlert
(D) Fouied check valve -Correct Answers ✔-Leaking #2 shut off valve
A 2" AVB when used on irrigation systemsterm-15 shall be instilled
(A) 6" above all downstream piping
(B) 18" above all downstream piping
(C) 24" above all downstream piping
(D) 27 3/4" above all downstream piping -Correct Answers ✔-6" above all
downstream piping
What causes the relief valief valve to close on a RPZ?
(A) Reilef valve spring pressure
(B) Supply side water pressure
(C) Pressure differential between Check #1 and Check #2
(D) All the above -Correct Answers ✔-Supply side water pressure
Backflow Prevention Assembly Tester Training