BAT BAT Cross-Connection Control & Risk Assessment 2

Question 1

What is a 'direct cross-connection'?

Accepted Answer

A physical link that continuously connects the potable system to a contaminant source

Answer

A direct cross-connection is a permanent physical link between the potable supply and a non-potable source, posing a continuous backflow risk regardless of operating conditions.

Question 2

Which condition is most likely to cause backsiphonage in a distribution system?

Accepted Answer

A water main break creating negative pressure in the supply line

Answer

A water main break can create a sudden vacuum or negative pressure, pulling water backward from connected premises and causing backsiphonage.

Question 3

Which backflow preventer is typically used for low-hazard (non-health) cross-connections under continuous pressure?

Accepted Answer

Double check valve assembly (DCVA)

Answer

A DCVA is approved for low-hazard applications such as lawn irrigation without fertilizer injection, providing protection against both backsiphonage and back pressure.

Question 4

What is 'premise isolation' in a cross-connection control program?

Accepted Answer

Installing a backflow preventer at the point of service entry to protect the public main from the entire facility

Answer

Premise isolation places a backflow preventer at the meter or service entry to protect the distribution system from any hazards that may exist anywhere within the entire premises.

Question 5

What is the primary goal of a cross-connection control survey?

Accepted Answer

To identify all actual and potential cross-connections and assess the appropriate level of protection needed

Answer

A cross-connection control survey systematically identifies every location where contaminants could enter the potable supply and evaluates whether adequate protection exists.

(BAT) Backflow Assembly Tester Certification Practice Test

(BAT) Backflow Assembly Tester Certification Practice Test

BAT BAT Cross-Connection Control & Risk Assessment 2