Backflow Prevention Exam with precise detailed ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
solutions
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 ____?
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
A. Allow air into the outlet piping system
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
solutions
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 ____?
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
A. Allow air into the outlet piping system
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
