BACKFLOW TESTER EXAM ACTUAL QUESTIONS WITH
COMPLETE SOLUTIONS VERIFIED 2024/2025 GRADED A+
A double check valve assembly is installed 12 above the floor for?
Maintenance
A low hazard Backflow preventer is a?
Double Check valve assembly
A field test report for a double check will include the manufacturer name, model,
size and ??
Serial number
Double check valve assembly components are??
Independently acting
A double check valve assembly hydraulic use is??
Continuous
A detector assembly contains a device of equal?
Protection
Each check valve of a double check valve assembly is forced to load to what psi?
1.0
A double check valve assembly is required to contain test cocks that total?
4
A double check valve assembly is designed to detect low flow rates up to what
gpm
,1
A double check detector assembly is referenced as a?
DCDA
A double check valve assembly installed in a vertical flow down orientation is
only allowed?
If approved for that orientation
The max height the water will rise in a barometric loop is dependent of?
Atmospheric pressure
The number 1 check spring on a RP has a minimum spring tension requirement
of?
5 psi
Relief valves are designed to open to atmosphere when supply pressure
becomes less than?
2 psi
A RP has an inlet supply pressure of 97psi. The pressure in the zone will be at
least?
92 psi
The purpose of an RP is to?
Prevent contamination from entering the water supply
The application of an RP is?
Any hazard application
The max level of protection provided by a RP is?
Health hazard
, A RP zone pressure should be
5 psi - less than supply
A RP fouled check valve number 1 may be indicated by
Continuous dripping
With both shut off valves closed and test cocks 3-4 open, a continuous discharge
from test cock 4 might indicate a leak through
Shut off valve number 2
Lock out tag out must be used
All the above
An RP relief valve is loaded to
Push the valve away from its seat
The purpose of RP check valve number 1 loading is
Create a reduction in water pressure
Intermittent relief valve discharge from a RP is probably caused by
Water hammer
Back pressure to a RP fouled check valve number 2 likely
Forced the relief valve to open and discharge
An air gap separation must be maintained at a RP,s
Relief valve discharge
An RP's "Buffer" can be described as
Difference between the check valve 1 loading and the relief valve opening point
When an RP is installed vertically, the relief valve discharge must be
Lower than check valve number 1
COMPLETE SOLUTIONS VERIFIED 2024/2025 GRADED A+
A double check valve assembly is installed 12 above the floor for?
Maintenance
A low hazard Backflow preventer is a?
Double Check valve assembly
A field test report for a double check will include the manufacturer name, model,
size and ??
Serial number
Double check valve assembly components are??
Independently acting
A double check valve assembly hydraulic use is??
Continuous
A detector assembly contains a device of equal?
Protection
Each check valve of a double check valve assembly is forced to load to what psi?
1.0
A double check valve assembly is required to contain test cocks that total?
4
A double check valve assembly is designed to detect low flow rates up to what
gpm
,1
A double check detector assembly is referenced as a?
DCDA
A double check valve assembly installed in a vertical flow down orientation is
only allowed?
If approved for that orientation
The max height the water will rise in a barometric loop is dependent of?
Atmospheric pressure
The number 1 check spring on a RP has a minimum spring tension requirement
of?
5 psi
Relief valves are designed to open to atmosphere when supply pressure
becomes less than?
2 psi
A RP has an inlet supply pressure of 97psi. The pressure in the zone will be at
least?
92 psi
The purpose of an RP is to?
Prevent contamination from entering the water supply
The application of an RP is?
Any hazard application
The max level of protection provided by a RP is?
Health hazard
, A RP zone pressure should be
5 psi - less than supply
A RP fouled check valve number 1 may be indicated by
Continuous dripping
With both shut off valves closed and test cocks 3-4 open, a continuous discharge
from test cock 4 might indicate a leak through
Shut off valve number 2
Lock out tag out must be used
All the above
An RP relief valve is loaded to
Push the valve away from its seat
The purpose of RP check valve number 1 loading is
Create a reduction in water pressure
Intermittent relief valve discharge from a RP is probably caused by
Water hammer
Back pressure to a RP fouled check valve number 2 likely
Forced the relief valve to open and discharge
An air gap separation must be maintained at a RP,s
Relief valve discharge
An RP's "Buffer" can be described as
Difference between the check valve 1 loading and the relief valve opening point
When an RP is installed vertically, the relief valve discharge must be
Lower than check valve number 1
