22 Questions
What is the issue with the installation of the AVB in this scenario?
It is under continuous pressure due to downstream shutoff valves
Why is the installation of the AVB considered improper in this case?
It remains pressurized due to having downstream shutoff valves
What results from having the AVB under continuous pressure due to downstream shutoff valves?
Ineffective atmospheric vacuum protection
How does improper installation of the AVB affect its functionality?
It compromises its ability to prevent backflow
What is the consequence of having the AVB under continuous pressure due to downstream shutoff valves?
It results in reduced water flow
Why is the installation of the AVB considered improper in this case?
It exposes the AVB to continuous pressure from shutoff valves
What is the issue with the installation of the AVB in this scenario?
It exposes the AVB to continuous pressure from shutoff valves
How does improper installation of the AVB affect its functionality?
It can lead to reduced performance and safety issues
What is the purpose of a Pressure Vacuum Breaker (PVB)?
To prevent backflow in irrigation systems
Why was the Pressure Vacuum Breaker (PVB) developed?
To be utilized under constant pressure and testable in line
What is the main disadvantage of Pressure Vacuum Breakers (PVBs)?
They do not protect against backpressure conditions
What is the requirement for the installation of Pressure Vacuum Breakers (PVBs)?
At least 12 inches above all downstream piping
In what market do Pressure Vacuum Breakers (PVBs) have broad usage?
Agriculture and irrigation
What additional feature distinguishes Pressure Vacuum Breakers (PVBs) from atmospheric vacuum breakers?
An additional first check valve
What step should be taken after expelling any trapped air from the hose or gauge?
Close high side bleed valve
What should be done after recording a stable reading on the gauge during the test?
Press capture button
When should the air inlet valve canopy be replaced?
Before removing all test equipment
When should the power be turned off during the pressure vacuum breaker assembly test?
After removing all test equipment
What should be done after opening testcock number two and recording a stable reading on the gauge?
Press the capture button and then close all tests
What should be done after expelling any trapped air from the hose or gauge?
Close high side bleed valve and close shutoff valve number two
What should be done before removing all test equipment after completing the pressure vacuum breaker assembly test?
Open test number two and expel any trapped air from hose or gauge
When should the air inlet valve canopy be replaced during the pressure vacuum breaker assembly test?
After opening testcock number two and expelling any trapped air from hose or gauge
Test your knowledge on identifying improper installations of Atmospheric Vacuum Breakers (AVB) in irrigation systems. Learn to recognize mistakes such as continuous pressure due to downstream shut-off valves.
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