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BACKFLOW TESTER AND REPAIR EXAM QUESTIONS WITH COMPLETE SOLUTIONS VERIFIED GRADED A+ $8.99   Add to cart

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BACKFLOW TESTER AND REPAIR EXAM QUESTIONS WITH COMPLETE SOLUTIONS VERIFIED GRADED A+

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BACKFLOW TESTER AND REPAIR EXAM QUESTIONS WITH COMPLETE SOLUTIONS VERIFIED GRADED A+ Backflow anything that causes the water to flow in the opposite direction; the reversal of the normal direction of flow. When does backflow occur? whenever the pressure from the customer becomes greater than th...

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  • May 10, 2024
  • 18
  • 2023/2024
  • Exam (elaborations)
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BACKFLOW TESTER AND REPAIR EXAM QUESTIONS WITH

COMPLETE SOLUTIONS VERIFIED GRADED A+

Backflow

anything that causes the water to flow in the opposite direction; the reversal of the

normal direction of flow.

When does backflow occur?

whenever the pressure from the customer becomes greater than the pressure in the

public water distribution system.

Backsiphonage

backflow that occurs whenever a cross-connection exists and a negative or reduced

pressure is generated in the public water supply.

Cross-connection

an actual or potential connection between a potable water supply and any non-potable

substance or source.

Potable water

water that is chemically, biologically and radiologically safe and is aesthetically pleasing.

Non-potable water

any liquid, gas or other substance that can be diluted, dissolved, suspended or mixed in

water that adversely affects the quality of water

Examples of non-potable water

industrial water, well water and irrigation water

Air gap

,the unobstructed vertical distance through the free atmosphere between the lowest

opening from any opening or faucet supplying water to a tank, plumbing fixture, or other

device and the flood level of the receiving vessel.

Contaminant

any substance that when introduced into water can adversely affect human health.

Pollutant

any substance that when introduced into the water does not adversely affect human

health but does affect the aesthetic quality of the water.

Containment program

refers to placing of a backflow preventer just downstream of the water meter thereby

containing any contamination that may occur within a plumbing system to that system

and preventing the contamination from spreading to the water distribution piping.

Isolation program

refers to placing a backflow assembly at the point of use within the customer's plumbing

system.

American Water Works Association (AWWA)

recognizes that the water purveyor has the responsibility to provide customers at the

service connection with water that is safe under all foreseeable circumstances.

Who has the primary responsibility to prevent backflow?

Water purveyor

Where does the customer's responsibility begin?

at the point of delivery from the public water system and includes all of his/her plumbing

system.

, Texas Commission on Environmental Quality (TCEQ)

responsible for promulgating and enforcing laws, rules, regulations and policies to be

followed for an effective cross-connection control program.

Arkansas Department of Health Engineering Section

responsibility for promulgating and enforcing laws, rules, and policies to be followed for

an effective cross-connection control program.

Arkansas Department of Health Plumbing and Natural Gas

responsible for promulgating and enforcing laws, rules, regulations and policies to be

followed for preventing backflow within and from plumbing systems.

Examples of biological contaminants

bacteria, viruises, protozoan's and algae

Examples of chemical contaminants

mercury, arsenic and lead

Define inorganic compounds

metals or other compounds that do not contain carbon

University of Southern California Foundation for Cross-Connection Control &

Hydraulic Research (USC FCCC & HR) sets what standards?

list of approved assemblies; conducts extensive lab test and field trials

American Water Works Association (AWWA) sets what standards?

Inspections

American Society of Sanitary Engineering (ASSE) sets what standards?

testing and repair certifications; lab analysis, certifications

American National Standards Institute (ANSI) sets what standards?

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