UPDATE!!!!2025/2026|GUARANTEED
Is a reversal of the normal direction of flow - ANSWER Backflow
A Cross connection is a _________ between a potable water system and some other non-
potable system of 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 backflow are _______ and ________ - ANSWER Backsiphonage and
Backpressure
There are __________ essential components of an effective cross-connection control
program. - ANSWER Seven
Define a Toxic substance. - ANSWER Any substance that is poisonous.
Give an example of a biological pollutant (non-health hazard). - ANSWER Lactobacillus
1
, Give examples of biological contaminants (health hazard). - ANSWER Giardia Lamblia
and Legionella
Give an example of a chemical pollutant (non-Health) - ANSWER Iron
Give examples of a chemical contaminant (health hazards). - ANSWER Mercury,
Arsenic, Lead
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 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, Health Inspector, Plumbing Inspector, Contractor.
Who might be responsible if the backflow preventer was installed incorrectly? -
ANSWER Water purveyor, contractor, health inspector, plumbing inspector.
who might be held responsible if the backflow preventer is not tested at least annually? -
ANSWER Customer, Water purveyor
Who might be held negligent if the backflow preventer was not tested properly? -
ANSWER Tester, Water Purveyor
Atmospheric pressure plays a major role in which type of backflow? -
ANSWER Backsiphonage
2
Is a reversal of the normal direction of flow - ANSWER Backflow
A Cross connection is a _________ between a potable water system and some other non-
potable system of 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 backflow are _______ and ________ - ANSWER Backsiphonage and
Backpressure
There are __________ essential components of an effective cross-connection control
program. - ANSWER Seven
Define a Toxic substance. - ANSWER Any substance that is poisonous.
Give an example of a biological pollutant (non-health hazard). - ANSWER Lactobacillus
1
, Give examples of biological contaminants (health hazard). - ANSWER Giardia Lamblia
and Legionella
Give an example of a chemical pollutant (non-Health) - ANSWER Iron
Give examples of a chemical contaminant (health hazards). - ANSWER Mercury,
Arsenic, Lead
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 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, Health Inspector, Plumbing Inspector, Contractor.
Who might be responsible if the backflow preventer was installed incorrectly? -
ANSWER Water purveyor, contractor, health inspector, plumbing inspector.
who might be held responsible if the backflow preventer is not tested at least annually? -
ANSWER Customer, Water purveyor
Who might be held negligent if the backflow preventer was not tested properly? -
ANSWER Tester, Water Purveyor
Atmospheric pressure plays a major role in which type of backflow? -
ANSWER Backsiphonage
2
