AWWA BACKFLOW PREVENTION
PRACTICE EXAM Questions and
Answers
1. Containing a plumbing system from the
public water supply requires back- flow protection at the ?
A. Appliance or fixture
B. Building foundation
C. Irrigation system
D. Service Connection
E. Sprinkler riser: Service Connection
2. Backflow preventer manufacturers
recommend that assemblies be field-test- ed annually and when ?
A. Installed
B. Moved
C. Repaired or Installed
D. Shut down
E. Water suppliers provide notice: Repaired or Installed
3. A differential pressure gauge reading of
0.2 psid is represented on water column sight tube by ?
,A. 1/16 in. (0.16 cm)
B. 1/2 in. (1.3 cm)
C. 2 in. (5.1 cm)
D. 3.5 in. (8.9 cm)
E. 5.5 in. (14 cm): 5.5 in. (14 cm)
4. Po
llution of a public water supply suggests the substance in the water
is ?
A. Aesthetically bad
B. Biological with virus only
C. Lowering the pH below 1.4
D. Radiological
E. Toxic: Aesthetically bad
5. Bac
ksiphonage may occur when the pressure inside copper tubing is
?
A. Greater than atmospheric pressure
B. Greater than barometric pressure
C. Greater than 0 gauge pressure
D. Less than absolute pressure
E. Less than atmospheric pressure: Less than atmospheric pressure
,6. A
cross-connection may be a permanent piping arrangement or a(n)
?
A. Backflow preventer
B. Church symbol
C. OSHA hazardous area designation
D. Railroad and highway intersection sign
E. Temporary hose bibb connection: Temporary hose bibb connection
7. The isolation
of a plumbing water system hazard requires ?
A. Appliance protection
B. Building quarantine
C. High-hazard protection
D. Meter protection
E. Toxin monitoring: Appliance protection
8. A direct cross-connection suggests the piping system may be
subjected to
?
A. Backpressure or backsiphonage
B. Backsiphonage only
, C. Periodic inspection
D. Sustained pressure
E. Toxic materials: Backpressure or backsiphonage
9. A pipe restriction's
flow velocity increase may allow ?
A. Aspiration
B. Backpressure
C. Low turbulence
D. Pressure head
E. Pressure surges: Aspiration
10. Water supply
contamination from backflow may result in ?
A. A bad taste
B. Coloration
C. Death
D. Odor or smell
E. Pipe wall mineral deposit flaking: Death
11. To prevent backflow, an atmospheric vacuum breaker is
primarily designed to ?
A. Allow air into the outlet piping system
PRACTICE EXAM Questions and
Answers
1. Containing a plumbing system from the
public water supply requires back- flow protection at the ?
A. Appliance or fixture
B. Building foundation
C. Irrigation system
D. Service Connection
E. Sprinkler riser: Service Connection
2. Backflow preventer manufacturers
recommend that assemblies be field-test- ed annually and when ?
A. Installed
B. Moved
C. Repaired or Installed
D. Shut down
E. Water suppliers provide notice: Repaired or Installed
3. A differential pressure gauge reading of
0.2 psid is represented on water column sight tube by ?
,A. 1/16 in. (0.16 cm)
B. 1/2 in. (1.3 cm)
C. 2 in. (5.1 cm)
D. 3.5 in. (8.9 cm)
E. 5.5 in. (14 cm): 5.5 in. (14 cm)
4. Po
llution of a public water supply suggests the substance in the water
is ?
A. Aesthetically bad
B. Biological with virus only
C. Lowering the pH below 1.4
D. Radiological
E. Toxic: Aesthetically bad
5. Bac
ksiphonage may occur when the pressure inside copper tubing is
?
A. Greater than atmospheric pressure
B. Greater than barometric pressure
C. Greater than 0 gauge pressure
D. Less than absolute pressure
E. Less than atmospheric pressure: Less than atmospheric pressure
,6. A
cross-connection may be a permanent piping arrangement or a(n)
?
A. Backflow preventer
B. Church symbol
C. OSHA hazardous area designation
D. Railroad and highway intersection sign
E. Temporary hose bibb connection: Temporary hose bibb connection
7. The isolation
of a plumbing water system hazard requires ?
A. Appliance protection
B. Building quarantine
C. High-hazard protection
D. Meter protection
E. Toxin monitoring: Appliance protection
8. A direct cross-connection suggests the piping system may be
subjected to
?
A. Backpressure or backsiphonage
B. Backsiphonage only
, C. Periodic inspection
D. Sustained pressure
E. Toxic materials: Backpressure or backsiphonage
9. A pipe restriction's
flow velocity increase may allow ?
A. Aspiration
B. Backpressure
C. Low turbulence
D. Pressure head
E. Pressure surges: Aspiration
10. Water supply
contamination from backflow may result in ?
A. A bad taste
B. Coloration
C. Death
D. Odor or smell
E. Pipe wall mineral deposit flaking: Death
11. To prevent backflow, an atmospheric vacuum breaker is
primarily designed to ?
A. Allow air into the outlet piping system
