F.W.&P.C.O.A. FLORIDA BACKFLOW
PREVENTION ASSEMBLY TESTER
CERTIFICATION COURSE QUESTIONS
AND ANSWERS WITH COMPLETE
SOLUTIONS 100% CORRECT RATED A+
1. What is an air gap?
A. The vertical distance between the bottom of a pipe and the water level in a tank
B. 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 device and the flood-level rim of the receptacle
C. A valve designed to prevent backflow
D. A gap required for drainage systems
Answer: B. 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 device and the flood-level rim of the receptacle
2. Who can approve backflow prevention assemblies?
A. Local health department
B. The Environmental Protection Agency (EPA)
C. The Foundation for Cross-Connection Control and Hydraulic Research at The
University of Southern California
D. The American Society of Plumbing Engineers (ASPE)
Answer: C. The Foundation for Cross-Connection Control and Hydraulic
Research at The University of Southern California
3. What is atmospheric pressure?
A. The pressure exerted by the weight of water
B. The pressure exerted by the weight of the atmosphere
C. The pressure inside a sealed container
D. The pressure created by a pump in a closed system
Answer: B. The pressure exerted by the weight of the atmosphere
,4. As the elevation above sea level increases, what happens to atmospheric
pressure?
A. It increases
B. It decreases
C. It remains the same
D. It fluctuates dramatically
Answer: B. It decreases
5. What is the weight of the atmosphere at sea level?
A. 10.0 PSI
B. 12.5 PSI
C. 14.7 PSI
D. 16.3 PSI
Answer: C. 14.7 PSI
6. What does an Atmospheric Vacuum Breaker (AVB) prevent?
A. Backpressure
B. Backsiphonage
C. Backflow
D. Contamination
Answer: B. Backsiphonage
7. What is backflow?
A. The flow of water from a non-potable system to a potable water supply
B. The controlled reversal of flow in the water system
C. A reverse flow condition, created by a difference in water pressure, which
causes water to flow back into the distribution pipes of a potable water supply from
any source or sources other than an intended source
D. The movement of water in a closed system to prevent stagnation
Answer: C. A reverse flow condition, created by a difference in water
pressure, which causes water to flow back into the distribution pipes of a
potable water supply from any source or sources other than an intended
source
, Backflow can occur under what two conditions -ANSWER✔✔Backsiphonage and
backpressure conditions
Backflow Prevention Assembly -ANSWER✔✔Any mechanical assembly, method,
or means that would prohibit the backflow of water or any other substance into the
potable water supply.
Define Backpressure -ANSWER✔✔A condition in which the pressure in the
downstream plumbing system is greater then the supply pressure in the potable
distribution system.
Backsiphonage -ANSWER✔✔The reversal of flow within a system that is caused
by negative pressure in the supply piping.
How high is a Barometric Loop? -ANSWER✔✔35FT in height
In a total vacuum will not rise higher then? -ANSWER✔✔33.9 Feet at sea level
Define Closed System -ANSWER✔✔Prevents any water that has passed through
the line from backflowing and re-entering the potable water system
Define Containment (Policy) -ANSWER✔✔To confine potential contamination
caused by a cross-connection within the facility where it arises by installing a
backflow prevention assembly at the meter or service connection when no meter is
used.
Continuous Pressure -ANSWER✔✔Water used for 12 hours or more within a 24
hour period.
PREVENTION ASSEMBLY TESTER
CERTIFICATION COURSE QUESTIONS
AND ANSWERS WITH COMPLETE
SOLUTIONS 100% CORRECT RATED A+
1. What is an air gap?
A. The vertical distance between the bottom of a pipe and the water level in a tank
B. 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 device and the flood-level rim of the receptacle
C. A valve designed to prevent backflow
D. A gap required for drainage systems
Answer: B. 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 device and the flood-level rim of the receptacle
2. Who can approve backflow prevention assemblies?
A. Local health department
B. The Environmental Protection Agency (EPA)
C. The Foundation for Cross-Connection Control and Hydraulic Research at The
University of Southern California
D. The American Society of Plumbing Engineers (ASPE)
Answer: C. The Foundation for Cross-Connection Control and Hydraulic
Research at The University of Southern California
3. What is atmospheric pressure?
A. The pressure exerted by the weight of water
B. The pressure exerted by the weight of the atmosphere
C. The pressure inside a sealed container
D. The pressure created by a pump in a closed system
Answer: B. The pressure exerted by the weight of the atmosphere
,4. As the elevation above sea level increases, what happens to atmospheric
pressure?
A. It increases
B. It decreases
C. It remains the same
D. It fluctuates dramatically
Answer: B. It decreases
5. What is the weight of the atmosphere at sea level?
A. 10.0 PSI
B. 12.5 PSI
C. 14.7 PSI
D. 16.3 PSI
Answer: C. 14.7 PSI
6. What does an Atmospheric Vacuum Breaker (AVB) prevent?
A. Backpressure
B. Backsiphonage
C. Backflow
D. Contamination
Answer: B. Backsiphonage
7. What is backflow?
A. The flow of water from a non-potable system to a potable water supply
B. The controlled reversal of flow in the water system
C. A reverse flow condition, created by a difference in water pressure, which
causes water to flow back into the distribution pipes of a potable water supply from
any source or sources other than an intended source
D. The movement of water in a closed system to prevent stagnation
Answer: C. A reverse flow condition, created by a difference in water
pressure, which causes water to flow back into the distribution pipes of a
potable water supply from any source or sources other than an intended
source
, Backflow can occur under what two conditions -ANSWER✔✔Backsiphonage and
backpressure conditions
Backflow Prevention Assembly -ANSWER✔✔Any mechanical assembly, method,
or means that would prohibit the backflow of water or any other substance into the
potable water supply.
Define Backpressure -ANSWER✔✔A condition in which the pressure in the
downstream plumbing system is greater then the supply pressure in the potable
distribution system.
Backsiphonage -ANSWER✔✔The reversal of flow within a system that is caused
by negative pressure in the supply piping.
How high is a Barometric Loop? -ANSWER✔✔35FT in height
In a total vacuum will not rise higher then? -ANSWER✔✔33.9 Feet at sea level
Define Closed System -ANSWER✔✔Prevents any water that has passed through
the line from backflowing and re-entering the potable water system
Define Containment (Policy) -ANSWER✔✔To confine potential contamination
caused by a cross-connection within the facility where it arises by installing a
backflow prevention assembly at the meter or service connection when no meter is
used.
Continuous Pressure -ANSWER✔✔Water used for 12 hours or more within a 24
hour period.
