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5.0
Backflow Prevention Practice Exam Recent
Questions with Detailed Verified Answers and
Correct Answers Already Graded A+
Q: 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
Ans: C. Repaired or Installed
Q: 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)
Ans: E. 5.5 in. (14 cm)
Q: Pollution of a public water supply suggests the substance in the
water is ____?
Sunday, 02 March 2025
,A. Aesthetically bad
B. Biological with virus only
C. Lowering the pH below 1.4
D. Radiological
E. Toxic
Ans: A. Aesthetically bad
Q: 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
Ans: E. Less than atmospheric pressure
Q: 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
Examstudy - Stuvia US
,E. Temporary hose bibb connection
Ans: E. Temporary hose bibb connection
Q: 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
Ans: A. Appliance protection
Q: 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
Ans: A. Backpressure or backsiphonage
Q: A pipe restriction's flow velocity increase may allow ____?
A. Aspiration
Examstudy - Stuvia US
, B. Backpressure
C. Low turbulence
D. Pressure head
E. Pressure surges
Ans: A. Aspiration
Q: 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
Ans: C. Death
Q: To prevent backflow, an atmospheric vacuum breaker is
primarily designed to ____?
A. Allow air into the outlet piping system
B. Create an elevation loop above ground
C. Introduce head loss
D. Prevent backpressure
E. Restrict velocity
Ans: A. Allow air into the outlet piping system
Examstudy - Stuvia US
In today's fast-paced educational landscape, students need reliable resources to excel in their studies.
5.0
Backflow Prevention Practice Exam Recent
Questions with Detailed Verified Answers and
Correct Answers Already Graded A+
Q: 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
Ans: C. Repaired or Installed
Q: 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)
Ans: E. 5.5 in. (14 cm)
Q: Pollution of a public water supply suggests the substance in the
water is ____?
Sunday, 02 March 2025
,A. Aesthetically bad
B. Biological with virus only
C. Lowering the pH below 1.4
D. Radiological
E. Toxic
Ans: A. Aesthetically bad
Q: 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
Ans: E. Less than atmospheric pressure
Q: 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
Examstudy - Stuvia US
,E. Temporary hose bibb connection
Ans: E. Temporary hose bibb connection
Q: 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
Ans: A. Appliance protection
Q: 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
Ans: A. Backpressure or backsiphonage
Q: A pipe restriction's flow velocity increase may allow ____?
A. Aspiration
Examstudy - Stuvia US
, B. Backpressure
C. Low turbulence
D. Pressure head
E. Pressure surges
Ans: A. Aspiration
Q: 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
Ans: C. Death
Q: To prevent backflow, an atmospheric vacuum breaker is
primarily designed to ____?
A. Allow air into the outlet piping system
B. Create an elevation loop above ground
C. Introduce head loss
D. Prevent backpressure
E. Restrict velocity
Ans: A. Allow air into the outlet piping system
Examstudy - Stuvia US
