Arizona Department of Environmental
Quality ADEQ Water Distribution Grades 1 &
2
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Practice questions for this set
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,_____________ water pressure must Minimum
be maintained to ensure
adequate customer service
during peak flow periods.
However, minimum positive
pressure must be maintained in
mains to protect against
backflow or backsiphonage
from cross-connections.
Name the most common Backflow
CAUSE for public water supply
contamination. _________________ or
cross-connection
,What does a backsiphonage Reduced
condition usually cause? __________
pressure or negative pressure
on the service or supply side.
What does a double check Pollution
valve backflow assembly
provide effective protection
from? Both backpressure and
backsiphonage of ____________.
What is equipment that utilizes Cross-Connection
water for cooling, lubrication,
washing or as a solvent always
susceptible to?
, What is the difference between Relief Valve
a reduced pressure principle
backflow device and a double
check backflow device? The RP
has a ______________.
What is the maximum time 1
period between having a
backflow device tested by a
certified backflow tester?
______________ year.
Quality ADEQ Water Distribution Grades 1 &
2
Save
Practice questions for this set
Learn 1 /7 Study using Learn
,_____________ water pressure must Minimum
be maintained to ensure
adequate customer service
during peak flow periods.
However, minimum positive
pressure must be maintained in
mains to protect against
backflow or backsiphonage
from cross-connections.
Name the most common Backflow
CAUSE for public water supply
contamination. _________________ or
cross-connection
,What does a backsiphonage Reduced
condition usually cause? __________
pressure or negative pressure
on the service or supply side.
What does a double check Pollution
valve backflow assembly
provide effective protection
from? Both backpressure and
backsiphonage of ____________.
What is equipment that utilizes Cross-Connection
water for cooling, lubrication,
washing or as a solvent always
susceptible to?
, What is the difference between Relief Valve
a reduced pressure principle
backflow device and a double
check backflow device? The RP
has a ______________.
What is the maximum time 1
period between having a
backflow device tested by a
certified backflow tester?
______________ year.
