BACKFLOW PREVENTION EXAM QUESTIONS WITH ANSWERS LATEST VERSION 2024-2025
Drinking water standards in the United States were first established by the: - Answers Public Health
Service
Sanitary surveys must be conducted by community water supplies every ________ years - Answers 3
years
The AWWA's manual of recommended practice about backflow prevention was first established in: -
Answers 1966
The USEPA's Total Coliform Rule contains requirements for: - Answers Cross-connection surveys
At the federal regulartory level, cross-connection control is not a: - Answers Funded mandate
Under federal law, citizens can sue a water supplier if the quality does not meet: - Answers Federal
Standards
Utilities are responsible for the water's quality to the last: - Answers Free-flowing tap
In 1925, the AWWA determined that_______ were not adequate protection: - Answers check valves
A federal court can assess a civil penalty for maintaining a hazardous connection of up to $____ per day.
- Answers $15,000
In 1898, a water utility was fined $_____ for supplying poor water. - Answers $5,000
A pump discharge generating 43 psig (297kPa) will result in a water column height of: - Answers 100 ft.
(30.5m) (43x2.31 = 99.33)
At sea level, the maximum vacuum possible is _____psig (kPa). - Answers 33.9 (234)
For backsiphonage to occur in a piping system, the system must experience a: - Answers Pressure below
atmospheric pressure
A fluid's velocity increase results in a(n): - Answers Reduction in pressure
To stop a siphon in a potable water system, one must: - Answers Admit air into the system
For fluid to flow, there must be a path and a(n): - Answers Difference in pressure
Absolute pressure consists of: - Answers Atmospheric + gauge pressure
Negative gauge pressure may result from: - Answers High usage
With an equal vacuum applied, a fluid lighter than water will produce a column elevation: - Answers
Higher than water
, The base of a water column 20 feet high will produce a pressure of ______ psig (kPa). - Answers 8.7 (60)
(20x .433 = 8.66 or 8.7)
The Uniform Plumbing Code states that a direct connection between the potable water piping and
sewer connected waste shall: - Answers Not be allowed under any condition
According to the Uniform Plumbing Code backflow prevention assembles shall be tested: - Answers All
of the above (repaired, installed, relocated)
According to the Uniform Plumbing Code, vacuum breakers for hose connections in health care or
laboratory areas should be not less than: - Answers 72 inches above the floor
The backflow preventer not allowed on an irrigation system is a(n): - Answers Double check valve
assembly
A flushometer vacuum breaker must be installed above the fixture a minimum of _____ inches (cm). -
Answers 6 (15)
According to the Uniform Plumbing Code, in building where potable water and nonpotable water
systems are installed, each system shall be: - Answers Clearly labeled
The Uniform Plumbing Code requires backflow preventers to be tested by a: - Answers Certified
backflow tester
The critical installation level for a water closet ball cock is ________ inch(es) (cm). - Answers 1 (2.5)
A backflow preventer may not be located in an area containing: - Answers Toxic Fumes
The Uniform Plumbing Code color code for potable water pipe labels is: - Answers Green with white
lettering
A single check valve does not provide: - Answers Backflow protection
A hose bibb vacuum breaker contains a: - Answers Spring-loaded check valve
Flush tanks contain a specialized type of: - Answers Atmospheric vacuum breaker
A dual check valve provides protection against: - Answers Elevated downstream pressure and negative
supply pressure
When a backflow preventer is installed as containment protection on a water service it is recommended
that the plumbing system contain: - Answers Expansion tank
A dual check valve is not: - Answers in-line testable
An application for a dual check with an intermediate atmosphere vent is a: - Answers low-pressure
residential boiler
Drinking water standards in the United States were first established by the: - Answers Public Health
Service
Sanitary surveys must be conducted by community water supplies every ________ years - Answers 3
years
The AWWA's manual of recommended practice about backflow prevention was first established in: -
Answers 1966
The USEPA's Total Coliform Rule contains requirements for: - Answers Cross-connection surveys
At the federal regulartory level, cross-connection control is not a: - Answers Funded mandate
Under federal law, citizens can sue a water supplier if the quality does not meet: - Answers Federal
Standards
Utilities are responsible for the water's quality to the last: - Answers Free-flowing tap
In 1925, the AWWA determined that_______ were not adequate protection: - Answers check valves
A federal court can assess a civil penalty for maintaining a hazardous connection of up to $____ per day.
- Answers $15,000
In 1898, a water utility was fined $_____ for supplying poor water. - Answers $5,000
A pump discharge generating 43 psig (297kPa) will result in a water column height of: - Answers 100 ft.
(30.5m) (43x2.31 = 99.33)
At sea level, the maximum vacuum possible is _____psig (kPa). - Answers 33.9 (234)
For backsiphonage to occur in a piping system, the system must experience a: - Answers Pressure below
atmospheric pressure
A fluid's velocity increase results in a(n): - Answers Reduction in pressure
To stop a siphon in a potable water system, one must: - Answers Admit air into the system
For fluid to flow, there must be a path and a(n): - Answers Difference in pressure
Absolute pressure consists of: - Answers Atmospheric + gauge pressure
Negative gauge pressure may result from: - Answers High usage
With an equal vacuum applied, a fluid lighter than water will produce a column elevation: - Answers
Higher than water
, The base of a water column 20 feet high will produce a pressure of ______ psig (kPa). - Answers 8.7 (60)
(20x .433 = 8.66 or 8.7)
The Uniform Plumbing Code states that a direct connection between the potable water piping and
sewer connected waste shall: - Answers Not be allowed under any condition
According to the Uniform Plumbing Code backflow prevention assembles shall be tested: - Answers All
of the above (repaired, installed, relocated)
According to the Uniform Plumbing Code, vacuum breakers for hose connections in health care or
laboratory areas should be not less than: - Answers 72 inches above the floor
The backflow preventer not allowed on an irrigation system is a(n): - Answers Double check valve
assembly
A flushometer vacuum breaker must be installed above the fixture a minimum of _____ inches (cm). -
Answers 6 (15)
According to the Uniform Plumbing Code, in building where potable water and nonpotable water
systems are installed, each system shall be: - Answers Clearly labeled
The Uniform Plumbing Code requires backflow preventers to be tested by a: - Answers Certified
backflow tester
The critical installation level for a water closet ball cock is ________ inch(es) (cm). - Answers 1 (2.5)
A backflow preventer may not be located in an area containing: - Answers Toxic Fumes
The Uniform Plumbing Code color code for potable water pipe labels is: - Answers Green with white
lettering
A single check valve does not provide: - Answers Backflow protection
A hose bibb vacuum breaker contains a: - Answers Spring-loaded check valve
Flush tanks contain a specialized type of: - Answers Atmospheric vacuum breaker
A dual check valve provides protection against: - Answers Elevated downstream pressure and negative
supply pressure
When a backflow preventer is installed as containment protection on a water service it is recommended
that the plumbing system contain: - Answers Expansion tank
A dual check valve is not: - Answers in-line testable
An application for a dual check with an intermediate atmosphere vent is a: - Answers low-pressure
residential boiler
