Cross connection control Exam
Questions and Answers Latest
2025/2026 GRADED A+
Water pureyor
- ANS - Who is responsible for the installation and use of lines on a
premise and for the avoidance of cross connections?
Backpressure
- ANS - What condition may cause a reversal of flow in water lines?
In an accessible location above ground
- ANS - Where is the best place to install a pressure reducer backflow
prevention device?
-It is easily altered
-water pressure is lost.
- ANS - What are the limitations of air-gap separation?
-Double check valve assembly
-pressure vacuum breaker
-reduced pressure printable device
- ANS - In the testing of which of the following is a differential pressure
gauge used?
, No valves allowed downstream
- ANS - Which of the following is a/are installation requirement(s) for an
atmospheric vacuum breaker?
Double check valve assembly
- ANS - What do you call a device that consist of two internally loaded
check valves?
12 months
- ANS - Under the specifications of the foundation of cross connection
control and hydraulic research, what is the minimum period of trouble-
free field service required for a device to gain approval?
1 inch
- ANS - An air-gap my never be less than how many inch(es)?
Twelve inches above the highest outlet
- ANS - What is the required minimum height of a water supply line above
the overflow rim of a receptacle or waste line for a proper air gap?
At least three PSI
- ANS - What should be the difference between the opening point of the
relief valve and the differential across the first check valve in order to
minimize excessive discharges due to pressure fluctuations in the supply
line?
Questions and Answers Latest
2025/2026 GRADED A+
Water pureyor
- ANS - Who is responsible for the installation and use of lines on a
premise and for the avoidance of cross connections?
Backpressure
- ANS - What condition may cause a reversal of flow in water lines?
In an accessible location above ground
- ANS - Where is the best place to install a pressure reducer backflow
prevention device?
-It is easily altered
-water pressure is lost.
- ANS - What are the limitations of air-gap separation?
-Double check valve assembly
-pressure vacuum breaker
-reduced pressure printable device
- ANS - In the testing of which of the following is a differential pressure
gauge used?
, No valves allowed downstream
- ANS - Which of the following is a/are installation requirement(s) for an
atmospheric vacuum breaker?
Double check valve assembly
- ANS - What do you call a device that consist of two internally loaded
check valves?
12 months
- ANS - Under the specifications of the foundation of cross connection
control and hydraulic research, what is the minimum period of trouble-
free field service required for a device to gain approval?
1 inch
- ANS - An air-gap my never be less than how many inch(es)?
Twelve inches above the highest outlet
- ANS - What is the required minimum height of a water supply line above
the overflow rim of a receptacle or waste line for a proper air gap?
At least three PSI
- ANS - What should be the difference between the opening point of the
relief valve and the differential across the first check valve in order to
minimize excessive discharges due to pressure fluctuations in the supply
line?
