WUS 065 AVB Under Normal Flow Conditions Quiz Part 1

What is the function of the float-check in the AVB under normal flow conditions?

Act as a check valve and an air-inlet valve

Where does the float-check seal off the port during normal flow in the AVB?

Air-inlet port

What happens to the float-check as water flows through the AVB under normal conditions?

Floats up to the air-inlet port and seals it off

What is the purpose of having shutoff valves located upstream of the AVB assembly?

To control and stop the flow of water to the AVB Signup and view all the answers

What does the float-check act as in the AVB under normal flow conditions?

Check valve and air-inlet valve Signup and view all the answers

Where does the float-check seal off the port during normal flow in the AVB?

Air-inlet port Signup and view all the answers

What is the purpose of having shutoff valves located upstream of the AVB assembly?

To isolate the AVB for maintenance Signup and view all the answers

What is the function of an Atmospheric Vacuum Breaker (AVB) under normal flow conditions?

Prevent backflow and allow air into the system Signup and view all the answers

What is the function of the float-check in the AVB under backsiphonage conditions?

It falls from the air inlet port, allowing air into the assembly and separating the downstream source from the upstream potable supply. Signup and view all the answers

What is the role of the float-check in preventing backsiphonage in an AVB?

It releases air into the assembly to break the vacuum and prevent backsiphonage. Signup and view all the answers

Why does the float-check fall to the seat of the assembly during backsiphonage in an AVB?

To release air into the assembly and prevent backsiphonage. Signup and view all the answers

What happens to the float-check in an AVB as water flows through it under normal conditions?

It allows air to enter the assembly and separate downstream source from the upstream potable supply. Signup and view all the answers

What is the purpose of the float-check in an Atmospheric Vacuum Breaker (AVB) under backsiphonage conditions?

To allow air into the assembly and separate the downstream source from the upstream potable supply Signup and view all the answers

What happens to the float-check in an AVB during backsiphonage?

It falls from the air inlet port allowing air into the assembly Signup and view all the answers

Where does the float-check seal off the port during normal flow in an AVB?

At the seat of the assembly Signup and view all the answers

What is the function of an Atmospheric Vacuum Breaker (AVB) under normal flow conditions?

To prevent backflow of non-potable water into the potable water supply Signup and view all the answers

What is the primary purpose of installing an AVB at least six inches above all downstream piping and outlets?

To prevent backpressure in the system Signup and view all the answers

Why is it important not to use shutoff or control valves downstream of the AVB?

To ensure proper functioning of the AVB Signup and view all the answers

What happens to the float-check in an AVB during backsiphonage?

It falls to the seat of the assembly Signup and view all the answers

What is the main use of an AVB in irrigation systems?

To prevent backpressure in the system Signup and view all the answers

What is the primary purpose of installing an AVB at least six inches above all downstream piping and outlets?

To prevent backpressure and protect against contamination Signup and view all the answers

Why is it important not to use shutoff or control valves downstream of the AVB?

To prevent interference with the operation of the AVB Signup and view all the answers

What is the main use of an AVB in irrigation systems?

Preventing contamination of the water supply Signup and view all the answers

What happens to the float-check in an AVB as water flows through it under normal conditions?

It remains open to allow for normal water flow Signup and view all the answers

What is the maximum continuous use or pressure duration allowed for an Atmospheric Vacuum Breaker (AVB) in a 24-hour period?

12 hours Signup and view all the answers

Why should there be no pumps downstream of the Atmospheric Vacuum Breaker (AVB)?

To prevent backpressure Signup and view all the answers

Under what conditions can the AVB and PVB be used with chemical addition systems?

When there are no pumps downstream Signup and view all the answers

What is the significance of installing an AVB at least six inches above all downstream piping and outlets?

To prevent backsiphonage Signup and view all the answers

What is the main reason for not using pumps downstream of the Atmospheric Vacuum Breaker (AVB)?

Pumps would create backpressure Signup and view all the answers

Why must the AVB not be subject to continuous use or pressure for a maximum of twelve hours out of any twenty four hour period?

To maintain the effectiveness of preventing backsiphonage Signup and view all the answers

Under what conditions can the AVB and PVB be used with chemical addition systems?

When there are no pumps downstream of the assemblies Signup and view all the answers

What is the significance of installing an AVB at least six inches above all downstream piping and outlets?

To ensure proper air gap for preventing backsiphonage Signup and view all the answers

WUS 065 AVB Under Normal Flow Conditions Quiz Part 1

Questions and Answers

What is the function of the float-check in the AVB under normal flow conditions?

Where does the float-check seal off the port during normal flow in the AVB?

What happens to the float-check as water flows through the AVB under normal conditions?

What is the purpose of having shutoff valves located upstream of the AVB assembly?

What does the float-check act as in the AVB under normal flow conditions?

Where does the float-check seal off the port during normal flow in the AVB?

What is the purpose of having shutoff valves located upstream of the AVB assembly?

What is the function of an Atmospheric Vacuum Breaker (AVB) under normal flow conditions?

What is the function of the float-check in the AVB under backsiphonage conditions?

What is the role of the float-check in preventing backsiphonage in an AVB?

Why does the float-check fall to the seat of the assembly during backsiphonage in an AVB?

What happens to the float-check in an AVB as water flows through it under normal conditions?

What is the purpose of the float-check in an Atmospheric Vacuum Breaker (AVB) under backsiphonage conditions?

What happens to the float-check in an AVB during backsiphonage?

Where does the float-check seal off the port during normal flow in an AVB?

What is the function of an Atmospheric Vacuum Breaker (AVB) under normal flow conditions?

What is the primary purpose of installing an AVB at least six inches above all downstream piping and outlets?

Why is it important not to use shutoff or control valves downstream of the AVB?

What happens to the float-check in an AVB during backsiphonage?

What is the main use of an AVB in irrigation systems?

What is the primary purpose of installing an AVB at least six inches above all downstream piping and outlets?

Why is it important not to use shutoff or control valves downstream of the AVB?

What is the main use of an AVB in irrigation systems?

What happens to the float-check in an AVB as water flows through it under normal conditions?

What is the maximum continuous use or pressure duration allowed for an Atmospheric Vacuum Breaker (AVB) in a 24-hour period?

Why should there be no pumps downstream of the Atmospheric Vacuum Breaker (AVB)?

Under what conditions can the AVB and PVB be used with chemical addition systems?

What is the significance of installing an AVB at least six inches above all downstream piping and outlets?

What is the main reason for not using pumps downstream of the Atmospheric Vacuum Breaker (AVB)?

Why must the AVB not be subject to continuous use or pressure for a maximum of twelve hours out of any twenty four hour period?

Under what conditions can the AVB and PVB be used with chemical addition systems?

What is the significance of installing an AVB at least six inches above all downstream piping and outlets?

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