BACKFLOW PREVENTION ASSEMBLY TESTER
EXAM PRACTICE QUESTIONS & CORRECT
ANSWERS LATEST 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 - ANSWER-Implement the emergency response plan
A mixture of air and gas is considered hazardous when the mixture exceeds what
percentage of the lower explosive limit
(A) 0%
(B) 3%
(C) 7%
(D) 10% - ANSWER-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 - ANSWER-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 - ANSWER-Upon installation
An absolute pressure of 25 psiaa (at sea level) is equal to approximately
(A) 5 psi
(B) 10 psi
(C) 20 psi
(D) 25 psi - ANSWER-10 psi
During 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 - ANSWER-Above 1.0 psid
,A differential pressure gauge is used to field test
(A) PVB's
(B) Dual Checks
(C) AVB's
(D) All the above - ANSWER-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 - ANSWER-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 - ANSWER-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 - ANSWER-#1 check is fouled open
When field testing the #1 Check of a RP the differential pressurw shouid be
(A) Greater than or equal to 5.0 psid
(B) 3.0 psid greater than the relief valve opening point
(C) 1.0 psid in the direction of flow
(D) Less than 5.0 psid - ANSWER-Greater than or equal to 5.0 psid
When testing a SVB what is the first 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 - ANSWER-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
EXAM PRACTICE QUESTIONS & CORRECT
ANSWERS LATEST 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 - ANSWER-Implement the emergency response plan
A mixture of air and gas is considered hazardous when the mixture exceeds what
percentage of the lower explosive limit
(A) 0%
(B) 3%
(C) 7%
(D) 10% - ANSWER-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 - ANSWER-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 - ANSWER-Upon installation
An absolute pressure of 25 psiaa (at sea level) is equal to approximately
(A) 5 psi
(B) 10 psi
(C) 20 psi
(D) 25 psi - ANSWER-10 psi
During 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 - ANSWER-Above 1.0 psid
,A differential pressure gauge is used to field test
(A) PVB's
(B) Dual Checks
(C) AVB's
(D) All the above - ANSWER-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 - ANSWER-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 - ANSWER-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 - ANSWER-#1 check is fouled open
When field testing the #1 Check of a RP the differential pressurw shouid be
(A) Greater than or equal to 5.0 psid
(B) 3.0 psid greater than the relief valve opening point
(C) 1.0 psid in the direction of flow
(D) Less than 5.0 psid - ANSWER-Greater than or equal to 5.0 psid
When testing a SVB what is the first 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 - ANSWER-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
