Backflow Prevention Practice Exam
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with verified answers
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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 |- |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 |- |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) |- |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 |- |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 |- |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 |- |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 |- |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 |- |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 |- |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 |- |ANSWER✔✔✔-Death
To |prevent |backflow, |an |atmospheric |vacuum |breaker |is |primarily |designed |to |____?
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with verified 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 |- |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 |- |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) |- |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 |- |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 |- |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 |- |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 |- |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 |- |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 |- |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 |- |ANSWER✔✔✔-Death
To |prevent |backflow, |an |atmospheric |vacuum |breaker |is |primarily |designed |to |____?
