Backflow Prevention Theory
and Practice with 100%
correct answers (graded A+)
______ is a reversal of the normal direction of flow. - answer Backflow
A cross-connection is a ______ between the potable water system and
some other non-potable system or source. - answer Link
Potable water is safe for ______. - answer Consumption
Another term for a direct cross-connection is a ______ cross-
connection. - answer Permanent
A ______ hazard is a high hazard, not a low hazard. - answer Health
Two types of backflows are ______ and ______. - answer Backpressure,
Backsiphonage
There are ______ essential components of an effective cross-
connection control program. - answer Seven
Define a toxic substance. - answer Biological pollutants that don't
cause disease. Something that makes you ill.
Give an example of a biological pollutant (non-health hazard). -
answer Lactobacillus
, Give examples of biological contaminants (high hazard). - answer
Giardia Lamblia
Give an example of a chemical pollutant (low hazard). - answer Iron
Give examples of chemical contaminants (high hazard). - answer
Mercury, Arsenic
Who has the PRIMARY RESPONSIBILITY if there is a backflow
incident and contaminated or polluted water ends up in the
distribution system? - answer Water Purveyor
What should a utility company be able to do if a customer, with a
cross-connection, refuses to install a backflow preventer? - answer
Discontinue Service
Who might be held responsible for selecting the wrong type of
backflow preventer? - answer Water Purveyor, Customer, Contractor
Who might be held responsible if the backflow preventer was
installed incorrectly? - answer Water Purveyor, Plumbing, Inspector,
Customer, Contractor
Who might be held responsible if the backflow preventer is not
tested at least annually? - answer Water Purveyor, Customer
Who might be held negligent if the backflow preventer was not
tested properly? - answer Water Purveyor, Tester, Customer
Atmospheric pressure plays a major role in which type of backflow?
Backsiphonage or Backpressure? - answer Backsiphonage
and Practice with 100%
correct answers (graded A+)
______ is a reversal of the normal direction of flow. - answer Backflow
A cross-connection is a ______ between the potable water system and
some other non-potable system or source. - answer Link
Potable water is safe for ______. - answer Consumption
Another term for a direct cross-connection is a ______ cross-
connection. - answer Permanent
A ______ hazard is a high hazard, not a low hazard. - answer Health
Two types of backflows are ______ and ______. - answer Backpressure,
Backsiphonage
There are ______ essential components of an effective cross-
connection control program. - answer Seven
Define a toxic substance. - answer Biological pollutants that don't
cause disease. Something that makes you ill.
Give an example of a biological pollutant (non-health hazard). -
answer Lactobacillus
, Give examples of biological contaminants (high hazard). - answer
Giardia Lamblia
Give an example of a chemical pollutant (low hazard). - answer Iron
Give examples of chemical contaminants (high hazard). - answer
Mercury, Arsenic
Who has the PRIMARY RESPONSIBILITY if there is a backflow
incident and contaminated or polluted water ends up in the
distribution system? - answer Water Purveyor
What should a utility company be able to do if a customer, with a
cross-connection, refuses to install a backflow preventer? - answer
Discontinue Service
Who might be held responsible for selecting the wrong type of
backflow preventer? - answer Water Purveyor, Customer, Contractor
Who might be held responsible if the backflow preventer was
installed incorrectly? - answer Water Purveyor, Plumbing, Inspector,
Customer, Contractor
Who might be held responsible if the backflow preventer is not
tested at least annually? - answer Water Purveyor, Customer
Who might be held negligent if the backflow preventer was not
tested properly? - answer Water Purveyor, Tester, Customer
Atmospheric pressure plays a major role in which type of backflow?
Backsiphonage or Backpressure? - answer Backsiphonage
