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Chapter 19: Backflow Prevention And Cross-Connection Control Questions And Answers With Verified Solutions 100% Correct!!!

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CHAPTER 19: BACKFLOW PREVENTION AND CROSS-CONNECTION CONTROL QUESTIONS AND ANSWERS WITH VERIFIED SOLUTIONS 100% CORRECT!!!

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CHAPTER 19: BACKFLOW PREVENTION
AND CROSS-CONNECTION CONTROL
QUESTIONS AND ANSWERS WITH
VERIFIED SOLUTIONS 100%
CORRECT!!!
Backflow
Answer: Flow of water, foreign liquids, or gases into a potable water system.

Conditions that cause backflow
Answer: Backpressure and backsiphonage.

Backpressure
Answer: A condition in which a substance is forced into a water system due to
higher pressure than the system's pressure.

Backsiphonage
Answer: A condition in which pressure in the distribution system is less than
atmospheric pressure (the main is under vacuum).

Cross-connection
Answer: Any connection or structural arrangement between a potable water
system and any other source in which backflow may occur.

Cross-connection sources
Answer: Exists if a connection leads from a potable line to anything other than a
potable service.

CC category
Answer: Actual or potential.

Actual cross-connection
Answer: A connection exists at all times.

Potential cross-connection
Answer: Something must be done to complete the connection.

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