Backflow Prevention Practice Exam
Questions With Correct Answers
Containing a plumbing system from the public water supply requires
| | | | | | | | | |
backflow protection at the _______?
| | | |
A. Appliance or fixture
| | |
B. Building foundation
| |
C. Irrigation system
| |
D. Service Connection
| |
E. Sprinkler riser - CORRECT ANSWER✔✔-Service Connection
| | | | | |
Backflow preventer manufacturers recommend that assemblies be field-
| | | | | | |
tested annually and when_____?
| | |
A. Installed
|
B. Moved
|
C. Repaired or Installed
| | |
D. Shut down
| |
E. Water suppliers provide notice - CORRECT ANSWER✔✔-Repaired or
| | | | | | | | |
Installed
,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) - CORRECT ANSWER✔✔-5.5 in. (14 cm)
| | | | | | | | | |
Pollution 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 - CORRECT ANSWER✔✔-Aesthetically bad
| | | | |
Backsiphonage 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 - CORRECT ANSWER✔✔-Less than
| | | | | | | | |
atmospheric pressure |
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 - CORRECT ANSWER✔✔-Temporary
| | | | | | | |
hose bibb connection
| |
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 - CORRECT ANSWER✔✔-Appliance protection
| | | | | |
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 - CORRECT ANSWER✔✔-Backpressure or
| | | | | | |
backsiphonage
A pipe restriction's flow velocity increase may allow ____?
| | | | | | | |
A. Aspiration
|
B. Backpressure
|
C. Low turbulence
| |
D. Pressure head
| |
E. Pressure surges - CORRECT ANSWER✔✔-Aspiration
| | | | |
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 - CORRECT ANSWER✔✔-Death
| | | | | | | |
To prevent backflow, an atmospheric vacuum breaker is primarily
| | | | | | | | |
designed to ____? | |
Questions With Correct Answers
Containing a plumbing system from the public water supply requires
| | | | | | | | | |
backflow protection at the _______?
| | | |
A. Appliance or fixture
| | |
B. Building foundation
| |
C. Irrigation system
| |
D. Service Connection
| |
E. Sprinkler riser - CORRECT ANSWER✔✔-Service Connection
| | | | | |
Backflow preventer manufacturers recommend that assemblies be field-
| | | | | | |
tested annually and when_____?
| | |
A. Installed
|
B. Moved
|
C. Repaired or Installed
| | |
D. Shut down
| |
E. Water suppliers provide notice - CORRECT ANSWER✔✔-Repaired or
| | | | | | | | |
Installed
,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) - CORRECT ANSWER✔✔-5.5 in. (14 cm)
| | | | | | | | | |
Pollution 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 - CORRECT ANSWER✔✔-Aesthetically bad
| | | | |
Backsiphonage 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 - CORRECT ANSWER✔✔-Less than
| | | | | | | | |
atmospheric pressure |
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 - CORRECT ANSWER✔✔-Temporary
| | | | | | | |
hose bibb connection
| |
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 - CORRECT ANSWER✔✔-Appliance protection
| | | | | |
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 - CORRECT ANSWER✔✔-Backpressure or
| | | | | | |
backsiphonage
A pipe restriction's flow velocity increase may allow ____?
| | | | | | | |
A. Aspiration
|
B. Backpressure
|
C. Low turbulence
| |
D. Pressure head
| |
E. Pressure surges - CORRECT ANSWER✔✔-Aspiration
| | | | |
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 - CORRECT ANSWER✔✔-Death
| | | | | | | |
To prevent backflow, an atmospheric vacuum breaker is primarily
| | | | | | | | |
designed to ____? | |
