Backflow Test questions with verified detailed solutions ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
A water supplier shall interrupt water service to a user/customer when - correct
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
answer✔✔A. Provisions in the cross-connection control ordinance or regulations are not ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
met
Backflow in a water distribution system can be caused by - correct answer✔✔C. Both A and
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
B
||\\//||
backpressure and backsiphonage ||\\//|| ||\\//||
An atmospheric vacuum breaker may have a downstream shut-off valve - correct
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
answer✔✔D. Under no circumstances ||\\//|| ||\\//|| ||\\//||
The Federal Safe Drinking Water Act places the responsibility for the quality of the public
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
water supply on which of the following - correct answer✔✔A. Water purveyor
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
An approved air gap must have - correct answer✔✔D. Both B and C
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
B.minimum 1" separation ||\\//|| ||\\//|| ||\\//||
C. Two times the pipe diameter
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
An unprotected bypass around a reduced pressure principle backflow prevention assembly -
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
correct answer✔✔D. Never
||\\//|| ||\\//|| ||\\//||
The main concern of the water purveyor where an auxiliary water supply is utilized or
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
maintained is to ensure - correct answer✔✔A. That backflow protection is provided at the ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
water service connection ||\\//|| ||\\//||
, A pressure vacuum breaker may be installed with a - correct answer✔✔A. Control valve
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
downstream
Multistory buildings may need a backflow prevention assembly installed - correct ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
answer✔✔D. All of the above ||\\//|| ||\\//|| ||\\//|| ||\\//||
||\\//|| A: at the service connection ||\\//|| ||\\//|| ||\\//|| ||\\//||
||\\//|| B: on the fire suppression system
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
||\\//|| C: when the building is ten or more stories high
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
When toxic chemicals are added to the fire suppression system, which of the following is
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
required to protect the potable water system - correct answer✔✔C. Reduced pressure ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
principle backflow prevention assembly ||\\//|| ||\\//|| ||\\//||
The administrative authority should maintain a record backflow prevention assemblies
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
installed on the water distribution system - correct answer✔✔D. All of the above ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
||\\//|| A: to verify that a backflow program is in place
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
||\\//|| B: to compile performance data on specific locations and assemblies
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
||\\//|| C: to ensure minimum annual testing of backflow prevention assemblies
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
A defensible backflow prevention program will maintain records on which of the following
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
- correct answer✔✔D. All of the above
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
||\\//|| A: backflow prevention assemblies within the system
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
||\\//|| B: complete list of certified backflow assembly testers
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
||\\//|| C: back flow prevention test reports
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
In responding to a potential backflow incident, the water purveyor must - correct
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
answer✔✔D. Implement emergency response plan ||\\//|| ||\\//|| ||\\//|| ||\\//||
A water supplier shall interrupt water service to a user/customer when - correct
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
answer✔✔A. Provisions in the cross-connection control ordinance or regulations are not ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
met
Backflow in a water distribution system can be caused by - correct answer✔✔C. Both A and
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
B
||\\//||
backpressure and backsiphonage ||\\//|| ||\\//||
An atmospheric vacuum breaker may have a downstream shut-off valve - correct
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
answer✔✔D. Under no circumstances ||\\//|| ||\\//|| ||\\//||
The Federal Safe Drinking Water Act places the responsibility for the quality of the public
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
water supply on which of the following - correct answer✔✔A. Water purveyor
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
An approved air gap must have - correct answer✔✔D. Both B and C
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
B.minimum 1" separation ||\\//|| ||\\//|| ||\\//||
C. Two times the pipe diameter
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
An unprotected bypass around a reduced pressure principle backflow prevention assembly -
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
correct answer✔✔D. Never
||\\//|| ||\\//|| ||\\//||
The main concern of the water purveyor where an auxiliary water supply is utilized or
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
maintained is to ensure - correct answer✔✔A. That backflow protection is provided at the ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
water service connection ||\\//|| ||\\//||
, A pressure vacuum breaker may be installed with a - correct answer✔✔A. Control valve
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
downstream
Multistory buildings may need a backflow prevention assembly installed - correct ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
answer✔✔D. All of the above ||\\//|| ||\\//|| ||\\//|| ||\\//||
||\\//|| A: at the service connection ||\\//|| ||\\//|| ||\\//|| ||\\//||
||\\//|| B: on the fire suppression system
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
||\\//|| C: when the building is ten or more stories high
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
When toxic chemicals are added to the fire suppression system, which of the following is
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
required to protect the potable water system - correct answer✔✔C. Reduced pressure ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
principle backflow prevention assembly ||\\//|| ||\\//|| ||\\//||
The administrative authority should maintain a record backflow prevention assemblies
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
installed on the water distribution system - correct answer✔✔D. All of the above ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
||\\//|| A: to verify that a backflow program is in place
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
||\\//|| B: to compile performance data on specific locations and assemblies
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
||\\//|| C: to ensure minimum annual testing of backflow prevention assemblies
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
A defensible backflow prevention program will maintain records on which of the following
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
- correct answer✔✔D. All of the above
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
||\\//|| A: backflow prevention assemblies within the system
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
||\\//|| B: complete list of certified backflow assembly testers
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
||\\//|| C: back flow prevention test reports
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
In responding to a potential backflow incident, the water purveyor must - correct
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
answer✔✔D. Implement emergency response plan ||\\//|| ||\\//|| ||\\//|| ||\\//||
