FULL QUESTION BANK WITH VERIFIED ANSWERS AND
EXPLANATIONS ASSURED PASS
What is the function of a backflow preventer in a cross-
connection control system?
A) To stop water flow during a pipe rupture
B) To allow water to flow only in one direction
C) To increase water pressure
D) To treat water before it enters the system
B) To allow water to flow only in one direction
5. Which of the following is a high hazard cross-connection
according to the UPC?
A) A residential lawn irrigation system
B) A commercial food processing facility
C) A swimming pool water supply
D) A public drinking fountain
B) A commercial food processing facility
When should a backflow prevention assembly be tested?
A) Every year
B) Every five years
C) Before installation
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,D) Only after a water main break
A) Every year
What is the difference between a "closed system" and an "open
system" in relation to cross-connection control?
A) An open system allows water to flow in multiple directions,
while a closed system allows water to flow in one direction
B) A closed system uses only manual controls for water flow,
while an open system is automated
C) An open system is connected to the main water supply,
while a closed system is isolated from it
D) A closed system prevents contamination, while an open
system allows for contamination
A) An open system allows water to flow in multiple directions,
while a closed system allows water to flow in one direction
8. Which of the following is the most common backflow
prevention device used in residential systems?
A) Air gap
B) Double-check valve
C) Pressure vacuum breaker
D) Reduced pressure zone (RPZ) valve
B) Double-check valve
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, How should a backflow preventer be installed to ensure
proper operation?
A) Above ground level
B) At the lowest point in the system
C) Below ground, with easy access for testing
D) At the point of use, connected directly to fixtures
C) Below ground, with easy access for testing
What is the consequence of not installing cross-connection
control devices where required by the UPC?
A) Increased water consumption
B) Possible contamination of the potable water supply
C) Decreased water flow
D) Excessive water pressure in the system
B) Possible contamination of
1. What is the primary purpose of a cross-connection control
program?
A) To reduce water consumption
B) To prevent contamination of the potable water supply
C) To improve water pressure
D) To reduce water treatment costs
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