ANSWERS|LATEST
UPDATE!!!!2025/2026|GUARANTEED
A double check valve assembly is installed 12 above the floor for? -
ANSWER Maintenance
A low hazard Backflow preventer is a? - ANSWER Double Check valve assembly
A field test report for a double check will include the manufacturer name, model, size and ??
- ANSWER Serial number
Double check valve assembly components are?? - ANSWER Independently acting
A double check valve assembly hydraulic use is?? - ANSWER Continuous
A detector assembly contains a device of equal? - ANSWER Protection
Each check valve of a double check valve assembly is forced to load to what psi? -
ANSWER 1.0
A double check valve assembly is required to contain test cocks that total? -
ANSWER 4
1
,A double check valve assembly is designed to detect low flow rates up to what gpm -
ANSWER 1
A double check detector assembly is referenced as a? - ANSWER DCDA
A double check valve assembly installed in a vertical flow down orientation is only allowed? -
ANSWER If approved for that orientation
The max height the water will rise in a barometric loop is dependent of? -
ANSWER Atmospheric pressure
The number 1 check spring on a RP has a minimum spring tension requirement of? -
ANSWER 5 psi
Relief valves are designed to open to atmosphere when supply pressure becomes less than?
- ANSWER 2 psi
A RP has an inlet supply pressure of 97psi. The pressure in the zone will be at least? -
ANSWER 92 psi
The purpose of an RP is to? - ANSWER Prevent contamination from entering the water
supply
The application of an RP is? - ANSWER Any hazard application
The max level of protection provided by a RP is? - ANSWER Health hazard
A RP zone pressure should be - ANSWER 5 psi - less than supply
2
, A RP fouled check valve number 1 may be indicated by - ANSWER 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 - ANSWER Shut off valve number 2
Lock out tag out must be used - ANSWER All the above
An RP relief valve is loaded to - ANSWER Push the valve away from its seat
The purpose of RP check valve number 1 loading is - ANSWER Create a reduction in
water pressure
Intermittent relief valve discharge from a RP is probably caused by - ANSWER Water
hammer
Back pressure to a RP fouled check valve number 2 likely - ANSWER Forced the relief
valve to open and discharge
An air gap separation must be maintained at a RP,s - ANSWER Relief valve discharge
An RP's "Buffer" can be described as - ANSWER 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 - ANSWER Lower
than check valve number 1
The RP number 2 check valve is loaded to close the valve with a minimum pressure of -
ANSWER 1 psid
3