ABC Cross-Connection Control and Monitoring Flashcards
6 cards from real ABC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 ABC Cross-Connection Control and Monitoring flashcards as text
What is the correct installation requirement for a pressure vacuum breaker (PVB) relative to the highest downstream outlet it protects?
Answer: It must be installed at least 12 inches above the highest downstream outlet
A PVB must be installed at least 12 inches above the highest downstream piping or outlet it serves to prevent backsiphonage from overcoming the device.
In cross-connection control, what does the term 'degree of hazard' determine?
Answer: The level of backflow protection required at a given connection
The degree of hazard at a cross-connection determines whether a low-hazard device (DCVA) or high-hazard device (RPZ or air gap) is required.
Which scenario correctly describes an auxiliary water supply that requires a containment backflow preventer at the meter?
Answer: A facility has a private well connected to its internal plumbing in addition to the public water supply
When a premises has a private well or other auxiliary source connected to its plumbing, the potable supply meter must be protected by a containment assembly to prevent cross-contamination.
What is the purpose of a cross-connection control survey conducted at a customer's premises?
Answer: Identify existing and potential cross-connections and the required level of protection
A premises survey identifies all actual and potential cross-connections, evaluates hazard levels, and determines the appropriate backflow protection required for each.
After a backflow incident occurs in a distribution system, which is the FIRST priority action for the water system operator?
Answer: Isolate the affected area and protect public health
The first priority in any backflow incident is to isolate the contaminated section and take steps to protect public health before other notifications or sampling.
What information must a certified backflow prevention assembly tester record on a test report?
Answer: Assembly type, serial number, test date, test results, and tester certification number
A complete test report must include the assembly's identifying information, test date, pass/fail results for each component, and the tester's certification credentials.