Backflow Prevention Assembly Tester Practice
Exam - Questions With Complete Solutions
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 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% Correct 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 Correct 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 Correct 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 Correct Answer - 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 Answer - 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 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 Correct 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 Correct 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 Correct Answer - #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
(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 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 Correct 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
Exam - Questions With Complete Solutions
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 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% Correct 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 Correct 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 Correct 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 Correct Answer - 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 Answer - 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 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 Correct 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 Correct 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 Correct Answer - #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
(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 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 Correct 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
