Backflow Prevention Assembly Tester Training Questions
With Complete Solutions
0.433 Correct Answers For every one foot of
water you generate how much PSI?
1 PSID Correct Answers Minimum standards for
passing check valve
100 psi Correct Answers Maximumun pressure
delivered to customers
14.7 PSI Correct Answers Atmospheric Pressure at
sea level
2.31 feet Correct Answers 27 3/4 inches
2.31 ft Correct Answers 1.0 PSIG
20 psi Correct Answers Minimum system pressure
27 3/4 Correct Answers 2.31 feet of head
3 methods for testing check valves Correct
Answers 1. Seating with backpressure
2. Seating with flow
3. Differential (PSID)
33.9 feet Correct Answers Only pertains to
suction/vacuum. Absolute furthest water can be
,pulled up a column under a complete and total
vacuum/siphonage
35 psi Correct Answers Minimum static pressure
4 preliminary steps to testing Correct Answers
Notify, identify, inspect, or observe.
4,3,2,1 Correct Answers Flush test cocks in this
sequence
60 psi Correct Answers Average working pressure
62.4 Correct Answers (7.48 gal/ft3)(8.34lbs/gal)
7.48 gallons Correct Answers 1 ft3 of water
8.34 lbs Correct Answers 1 gallon of water
A valve designed to open in the direction of normal
flow and close with the reversal of flow. Correct
Answers Check valve
Actual Cross Connection Correct Answers Any
arrangement of pipes, fittings, that connects a
potable water supply directly to a non-potable
source at all times.
Air Gap Correct Answers A physical seperation
between the free flowing discharge end of a
, potable water supply pipeline and the highest flood
level of an open or non-pressure receiving vessel.
Air Gap Correct Answers In plumbing, the
unobstructed vertical distance through the free
atmosphere between the lowest opening from any
pipe or outlet supplying water to a tank, plumbing
fixture, or other container, and the overflow rim of
that container
Air Gap Correct Answers Requires a minimum
vertical air space 2 pipe diameters above the flood
rim.
Requires a minimum 1 in. Distance.
Air Gap Correct Answers Testing requirements: it
does not require "testing" as the other devices. But
it should be inspected to make sure it has not been
nullified with objects such as hoses or pipes.
Airgap Correct Answers 2x Supply line diameter
but not less than 1".
Approved airgap seperation Correct Answers
Backsiphonage, backpressure, containment, and
pollutant
Area Correct Answers Measures in square inches
(in2)
With Complete Solutions
0.433 Correct Answers For every one foot of
water you generate how much PSI?
1 PSID Correct Answers Minimum standards for
passing check valve
100 psi Correct Answers Maximumun pressure
delivered to customers
14.7 PSI Correct Answers Atmospheric Pressure at
sea level
2.31 feet Correct Answers 27 3/4 inches
2.31 ft Correct Answers 1.0 PSIG
20 psi Correct Answers Minimum system pressure
27 3/4 Correct Answers 2.31 feet of head
3 methods for testing check valves Correct
Answers 1. Seating with backpressure
2. Seating with flow
3. Differential (PSID)
33.9 feet Correct Answers Only pertains to
suction/vacuum. Absolute furthest water can be
,pulled up a column under a complete and total
vacuum/siphonage
35 psi Correct Answers Minimum static pressure
4 preliminary steps to testing Correct Answers
Notify, identify, inspect, or observe.
4,3,2,1 Correct Answers Flush test cocks in this
sequence
60 psi Correct Answers Average working pressure
62.4 Correct Answers (7.48 gal/ft3)(8.34lbs/gal)
7.48 gallons Correct Answers 1 ft3 of water
8.34 lbs Correct Answers 1 gallon of water
A valve designed to open in the direction of normal
flow and close with the reversal of flow. Correct
Answers Check valve
Actual Cross Connection Correct Answers Any
arrangement of pipes, fittings, that connects a
potable water supply directly to a non-potable
source at all times.
Air Gap Correct Answers A physical seperation
between the free flowing discharge end of a
, potable water supply pipeline and the highest flood
level of an open or non-pressure receiving vessel.
Air Gap Correct Answers In plumbing, the
unobstructed vertical distance through the free
atmosphere between the lowest opening from any
pipe or outlet supplying water to a tank, plumbing
fixture, or other container, and the overflow rim of
that container
Air Gap Correct Answers Requires a minimum
vertical air space 2 pipe diameters above the flood
rim.
Requires a minimum 1 in. Distance.
Air Gap Correct Answers Testing requirements: it
does not require "testing" as the other devices. But
it should be inspected to make sure it has not been
nullified with objects such as hoses or pipes.
Airgap Correct Answers 2x Supply line diameter
but not less than 1".
Approved airgap seperation Correct Answers
Backsiphonage, backpressure, containment, and
pollutant
Area Correct Answers Measures in square inches
(in2)
