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Backflow Assembly Tester Cert. Workshop
Questions and Correct Answers
1. Backflow is the undesirable reversal of flow of water or other
substances
through a cross
connection into the public water system or consumer's:
a. non potable water system.
b. used water system or consumer's potable water system.
c. public water system or consumer's potable water system.
d. public water system or consumer's non potable system. Ans: c.
public water system or consumer's potable water system.
2. An approved air gap (AG) is a physical separation between the
free-flowing
end of a:
a. non potable water supply pipeline and the overflow rim of an
open or
non-pressurized
receiving vessel.
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b. potable water supply pipeline and the overflow drain of an open
or
non-pressurized receiving
vessel.
c. potable water supply pipeline and the overflow rim of an open
or
pressurized receiving
vessel.
d. potable water supply pipeline and the overflow rim of an open
or
non-pressurized receiving
vessel. Ans: d. potable water supply pipeline and the overflow rim
of an open or
non-pressurized receiving
vessel.
3. An indirect cross-connection is one that is subject to what type
of backflow?
a. only backsiphonage
b. only backpressure
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c. only low hazard, backsiphonage or backpressure
d. high or low hazard, backsiphonage or backpressure Ans: a. only
backsiphonage
4. Cross-connections between the potable water piping and any
piping or
containers
containing substances not approved as potable water must be
either
eliminated or
controlled by the installation of an:
a. air gap or a backflow prevention device.
b. approved air break or an backflow prevention device.
c. approved air gap or an approved backflow prevention device.
d. approved air gap or an approved backflow prevention assembly.
Ans: d. approved air gap or an approved backflow prevention
assembly.
5. While testing CV#2 of a DCVA, if CV #2 leaks, the BAT would
observe that the
water flow:
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a. stops from the sight tube at TC #3 and no differential shows on
the gauge.
b. stops from the sight tube at TC #4 and at least 1.0 psid shows
on the gauge.
c. continues from the sight tube at TC #4 and at least 1.0 psid
shows on gauge
d. stops from the sight tube at TC #4 and no differential shows on
the gauge. Ans: d. stops from the sight tube at TC #4 and no
differential shows on the gauge.
6. Service protection is a way to protect a public water system
from contamination due to backflow from the customer's water
system by the installing an approved
backflow preventer at the:
a. service connection which is considered to be at or near the
water meter.
b. service connection which is considered to be the end of the
customer's potable water system furthest from the meter
c. point of use which is considered to be the start of the
customer's potable
water system where the pipe goes through the outside wall of the
building.
d. point of use which is normally considered to be inside the
building. Ans: a. service connection which is considered to be at or
near the water meter.
© 2025 All rights reserved
Backflow Assembly Tester Cert. Workshop
Questions and Correct Answers
1. Backflow is the undesirable reversal of flow of water or other
substances
through a cross
connection into the public water system or consumer's:
a. non potable water system.
b. used water system or consumer's potable water system.
c. public water system or consumer's potable water system.
d. public water system or consumer's non potable system. Ans: c.
public water system or consumer's potable water system.
2. An approved air gap (AG) is a physical separation between the
free-flowing
end of a:
a. non potable water supply pipeline and the overflow rim of an
open or
non-pressurized
receiving vessel.
© 2025 All rights reserved
, 2 | Page
b. potable water supply pipeline and the overflow drain of an open
or
non-pressurized receiving
vessel.
c. potable water supply pipeline and the overflow rim of an open
or
pressurized receiving
vessel.
d. potable water supply pipeline and the overflow rim of an open
or
non-pressurized receiving
vessel. Ans: d. potable water supply pipeline and the overflow rim
of an open or
non-pressurized receiving
vessel.
3. An indirect cross-connection is one that is subject to what type
of backflow?
a. only backsiphonage
b. only backpressure
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c. only low hazard, backsiphonage or backpressure
d. high or low hazard, backsiphonage or backpressure Ans: a. only
backsiphonage
4. Cross-connections between the potable water piping and any
piping or
containers
containing substances not approved as potable water must be
either
eliminated or
controlled by the installation of an:
a. air gap or a backflow prevention device.
b. approved air break or an backflow prevention device.
c. approved air gap or an approved backflow prevention device.
d. approved air gap or an approved backflow prevention assembly.
Ans: d. approved air gap or an approved backflow prevention
assembly.
5. While testing CV#2 of a DCVA, if CV #2 leaks, the BAT would
observe that the
water flow:
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a. stops from the sight tube at TC #3 and no differential shows on
the gauge.
b. stops from the sight tube at TC #4 and at least 1.0 psid shows
on the gauge.
c. continues from the sight tube at TC #4 and at least 1.0 psid
shows on gauge
d. stops from the sight tube at TC #4 and no differential shows on
the gauge. Ans: d. stops from the sight tube at TC #4 and no
differential shows on the gauge.
6. Service protection is a way to protect a public water system
from contamination due to backflow from the customer's water
system by the installing an approved
backflow preventer at the:
a. service connection which is considered to be at or near the
water meter.
b. service connection which is considered to be the end of the
customer's potable water system furthest from the meter
c. point of use which is considered to be the start of the
customer's potable
water system where the pipe goes through the outside wall of the
building.
d. point of use which is normally considered to be inside the
building. Ans: a. service connection which is considered to be at or
near the water meter.
© 2025 All rights reserved
