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BACKFLOW PREVENTION ASSEMBLY TESTER
EXAM NEWEST COMPLETE QUESTIONS AND
CORRECT VERIFIED ANSWERS (DETAILED
ANSWERS) ALREADY 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 - ANSWER>>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% - 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 1 / 4
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2 (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 perssure 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 2 / 4
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3 (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 3 / 4
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(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 - ANSWER>>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 - 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 (C) Fouied air inlert (D) Fouied check valve - ANSWER>>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
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