Backflow Tester Exam comprehensive Questions and
Answers with 100% Correct Answers | Latest Version
Question 1.
A double check valve assembly is installed 12 above the floor for?
Correct Answer: Maintenance
Question 2.
A low hazard Backflow preventer is a?
Correct Answer: Double Check valve assembly
Question 3.
A field test report for a double check will include the manufacturer name, model, size and??
Correct Answer: Serial number
Question 4.
Double check valve assembly components are??
Correct Answer: Independently acting
Question 5.
A double check valve assembly hydraulic use is??
Correct Answer: Continuous
Question 6.
A detector assembly contains a device of equal?
Correct Answer: Protection
Question 7.
Each check valve of a double check valve assembly is forced to load to what psi?
Correct Answer: 1.0
Question 8.
A double check valve assembly is required to contain test cocks that total?
Correct Answer: 4
Question 9.
A double check valve assembly is designed to detect low flow rates up to what gpm
Correct Answer: 1
,Question 10.
A double check detector assembly is referenced as a?
Correct Answer: DCDA
Question 11.
A double check valve assembly installed in a vertical flow down orientation is only allowed?
Correct Answer: If approved for that orientation
Question 12.
The max height the water will rise in a barometric loop is dependent of?
Correct Answer: Atmospheric pressure
Question 13.
The number 1 check spring on a RP has a minimum spring tension requirement of?
Correct Answer: 5 psi
Question 14.
Relief valves are designed to open to atmosphere when supply pressure becomes less
than?
Correct Answer: 2 psi
Question 15.
A RP has an inlet supply pressure of 97psi. The pressure in the zone will be at least?
Correct Answer: 92 psi
Question 16.
The purpose of an RP is to?
Correct Answer: Prevent contamination from entering the water supply
Question 17.
The application of an RP is?
Correct Answer: Any hazard application
Question 18.
The max level of protection provided by a RP is?
Correct Answer: Health hazard
, Question 19.
A RP zone pressure should be
Correct Answer: 5 psi - less than supply
Question 20.
A RP fouled check valve number 1 may be indicated by
Correct Answer: Continuous dripping
Question 21.
With both shut off valves closed and test cocks 3-4 open, a continuous discharge from test
cock 4 might indicate a leak through
Correct Answer: Shut off valve number 2
Question 22.
Lock out tag out must be used
Correct Answer: All the above
Question 23.
An RP relief valve is loaded to
Correct Answer: Push the valve away from its seat
Question 24.
The purpose of RP check valve number 1 loading is
Correct Answer: Create a reduction in water pressure
Question 25.
Intermittent relief valve discharge from a RP is probably caused by
Correct Answer: Water hammer
Question 26.
Back pressure to a RP fouled check valve number 2 likely
Correct Answer: Forced the relief valve to open and discharge
Question 27.
An air gap separation must be maintained at a RP,s
Correct Answer: Relief valve discharge
Answers with 100% Correct Answers | Latest Version
Question 1.
A double check valve assembly is installed 12 above the floor for?
Correct Answer: Maintenance
Question 2.
A low hazard Backflow preventer is a?
Correct Answer: Double Check valve assembly
Question 3.
A field test report for a double check will include the manufacturer name, model, size and??
Correct Answer: Serial number
Question 4.
Double check valve assembly components are??
Correct Answer: Independently acting
Question 5.
A double check valve assembly hydraulic use is??
Correct Answer: Continuous
Question 6.
A detector assembly contains a device of equal?
Correct Answer: Protection
Question 7.
Each check valve of a double check valve assembly is forced to load to what psi?
Correct Answer: 1.0
Question 8.
A double check valve assembly is required to contain test cocks that total?
Correct Answer: 4
Question 9.
A double check valve assembly is designed to detect low flow rates up to what gpm
Correct Answer: 1
,Question 10.
A double check detector assembly is referenced as a?
Correct Answer: DCDA
Question 11.
A double check valve assembly installed in a vertical flow down orientation is only allowed?
Correct Answer: If approved for that orientation
Question 12.
The max height the water will rise in a barometric loop is dependent of?
Correct Answer: Atmospheric pressure
Question 13.
The number 1 check spring on a RP has a minimum spring tension requirement of?
Correct Answer: 5 psi
Question 14.
Relief valves are designed to open to atmosphere when supply pressure becomes less
than?
Correct Answer: 2 psi
Question 15.
A RP has an inlet supply pressure of 97psi. The pressure in the zone will be at least?
Correct Answer: 92 psi
Question 16.
The purpose of an RP is to?
Correct Answer: Prevent contamination from entering the water supply
Question 17.
The application of an RP is?
Correct Answer: Any hazard application
Question 18.
The max level of protection provided by a RP is?
Correct Answer: Health hazard
, Question 19.
A RP zone pressure should be
Correct Answer: 5 psi - less than supply
Question 20.
A RP fouled check valve number 1 may be indicated by
Correct Answer: Continuous dripping
Question 21.
With both shut off valves closed and test cocks 3-4 open, a continuous discharge from test
cock 4 might indicate a leak through
Correct Answer: Shut off valve number 2
Question 22.
Lock out tag out must be used
Correct Answer: All the above
Question 23.
An RP relief valve is loaded to
Correct Answer: Push the valve away from its seat
Question 24.
The purpose of RP check valve number 1 loading is
Correct Answer: Create a reduction in water pressure
Question 25.
Intermittent relief valve discharge from a RP is probably caused by
Correct Answer: Water hammer
Question 26.
Back pressure to a RP fouled check valve number 2 likely
Correct Answer: Forced the relief valve to open and discharge
Question 27.
An air gap separation must be maintained at a RP,s
Correct Answer: Relief valve discharge
