10/20/25, 8:33 PM Backflow Prevention Practice Exam
Backflow Prevention Assembly Tester Actual Practice
Exam Test Bank Newest /Backflow Prevention Assembly
Tester Exam Preparation/Backflow Prevention Assembly
Tester Practice Exam With Complete 320 Questions And
Correct Answers| Brand New Version!
Prior to testing the check Determine the tightness of shut-off valve number 2
valves in the
direction of flow on a
double check valve
assembly using a high and
low side on the gauge, a
tester must first ?
A. Determine the tightness of
shut-off valve number 2
B. Notify the owner of the
water shut-off
C. Record the water supply line
pressure
D. Submit the test report
to the water supply
E. Test check valve
number 2 with
backpressure
A double check valve If the assembly was tested and approved as such
assembly installed in a
vertical flow down
orientation is only
allowed ?
A. In a basement or vault
B. If the assembly was tested
and approved as such
C. If the check weight does
not compress the spring
/ 1/44
,10/20/25, 8:33 PM Backflow Prevention Practice Exam
D. On fire-suppression systems
E. On water supply service
connections
A check valve field test Disc softening or decay
reported value of
0.8 psid (5.5 kPa) suggests ?
A. A passing check valve
B. A broken or failed spring
C. Debris in the check seat
D. Disc softening or decay
E. Low water pressure
A reduced pressure Push the valve away from its seat
principle assembly's relief
valve is loaded to ?
A. Push the valve away from its
seat
B. Push the valve on to its seat
C. Remain closed with any
zone pressure
D. Remain open with any
supply pressure
E. Sustain all water hammer
conditions
The purpose of the reduced Create a reduction in water pressure
pressure
principle assembly check
valve number 1 loading is
to _______ ?
A. Create a pressure head
increase
B. Create a reduction in water
pressure
C. Provide water pressure
to the relief valve
diaphragm
D. Reduce system pressure to
the plumbing code limit
E. Sustain the assembly's buffer
/ 2/44
,10/20/25, 8:33 PM Backflow Prevention Practice Exam
Intermittent relief valve Water hammer or hydraulic shock
discharge from a reduced
pressure principle
assembly is probably
caused by ___ ?
A. A fouled check valve
number 1
B. A fouled check valve number
2
C. A fouled relief valve
D. A partially closed shut-off
valve number 2
E. Water hammer or hydraulic
shock
Backpressure to a reduced Force the relief valve to open and discharge
pressure
principle assembly fouled
check valve number 2
will likely ____ ?
A. Dissipate through the air-
vent
B. Force the relief valve
to open and discharge
C. Have no visible effect
D. Push the check valve closed
E. Remain in the system
An air-gap separation must Relief valve discharge
be maintained at a reduced
pressure principle
assembly's
_____?
A. Build drain
B. Domestic Supply
C. Indirect drain outlet
D. Relief valve discharge
E. Stationary sensor
/ 3/44
, 10/20/25, 8:33 PM Backflow Prevention Practice Exam
A reduced pressure Difference between the check valve 1 loading and the relief valve
principle assembly's opening point
buffer can be described
as a ______________ ?
A. Soft-seated check
upstream of the
assembly
B. Difference between the
values for check valve 1
and check valve 2
C. Difference between the
check valve 1 loading and
the relief valve opening
point
D. Difference between the
relief valve opening
point and check valve
2
E. Sum of the check valve 1
loading and the relief valve
divided by 2
When a reduced pressure Lower than check valve number 1
principle
assembly is installed
vertically, the relief valve
discharge must be
________________ ?
A. To a floor drain 2 times the
piping size
B. Higher than check valve
number 1
C. Lower than check valve
number 1
D. Lower than check valve
number 2
E. Piped with the flow directed
down
/ 4/44
Backflow Prevention Assembly Tester Actual Practice
Exam Test Bank Newest /Backflow Prevention Assembly
Tester Exam Preparation/Backflow Prevention Assembly
Tester Practice Exam With Complete 320 Questions And
Correct Answers| Brand New Version!
Prior to testing the check Determine the tightness of shut-off valve number 2
valves in the
direction of flow on a
double check valve
assembly using a high and
low side on the gauge, a
tester must first ?
A. Determine the tightness of
shut-off valve number 2
B. Notify the owner of the
water shut-off
C. Record the water supply line
pressure
D. Submit the test report
to the water supply
E. Test check valve
number 2 with
backpressure
A double check valve If the assembly was tested and approved as such
assembly installed in a
vertical flow down
orientation is only
allowed ?
A. In a basement or vault
B. If the assembly was tested
and approved as such
C. If the check weight does
not compress the spring
/ 1/44
,10/20/25, 8:33 PM Backflow Prevention Practice Exam
D. On fire-suppression systems
E. On water supply service
connections
A check valve field test Disc softening or decay
reported value of
0.8 psid (5.5 kPa) suggests ?
A. A passing check valve
B. A broken or failed spring
C. Debris in the check seat
D. Disc softening or decay
E. Low water pressure
A reduced pressure Push the valve away from its seat
principle assembly's relief
valve is loaded to ?
A. Push the valve away from its
seat
B. Push the valve on to its seat
C. Remain closed with any
zone pressure
D. Remain open with any
supply pressure
E. Sustain all water hammer
conditions
The purpose of the reduced Create a reduction in water pressure
pressure
principle assembly check
valve number 1 loading is
to _______ ?
A. Create a pressure head
increase
B. Create a reduction in water
pressure
C. Provide water pressure
to the relief valve
diaphragm
D. Reduce system pressure to
the plumbing code limit
E. Sustain the assembly's buffer
/ 2/44
,10/20/25, 8:33 PM Backflow Prevention Practice Exam
Intermittent relief valve Water hammer or hydraulic shock
discharge from a reduced
pressure principle
assembly is probably
caused by ___ ?
A. A fouled check valve
number 1
B. A fouled check valve number
2
C. A fouled relief valve
D. A partially closed shut-off
valve number 2
E. Water hammer or hydraulic
shock
Backpressure to a reduced Force the relief valve to open and discharge
pressure
principle assembly fouled
check valve number 2
will likely ____ ?
A. Dissipate through the air-
vent
B. Force the relief valve
to open and discharge
C. Have no visible effect
D. Push the check valve closed
E. Remain in the system
An air-gap separation must Relief valve discharge
be maintained at a reduced
pressure principle
assembly's
_____?
A. Build drain
B. Domestic Supply
C. Indirect drain outlet
D. Relief valve discharge
E. Stationary sensor
/ 3/44
, 10/20/25, 8:33 PM Backflow Prevention Practice Exam
A reduced pressure Difference between the check valve 1 loading and the relief valve
principle assembly's opening point
buffer can be described
as a ______________ ?
A. Soft-seated check
upstream of the
assembly
B. Difference between the
values for check valve 1
and check valve 2
C. Difference between the
check valve 1 loading and
the relief valve opening
point
D. Difference between the
relief valve opening
point and check valve
2
E. Sum of the check valve 1
loading and the relief valve
divided by 2
When a reduced pressure Lower than check valve number 1
principle
assembly is installed
vertically, the relief valve
discharge must be
________________ ?
A. To a floor drain 2 times the
piping size
B. Higher than check valve
number 1
C. Lower than check valve
number 1
D. Lower than check valve
number 2
E. Piped with the flow directed
down
/ 4/44
