Backflow Study Guide
2025 questions and
answers
A backflow prevention assembly installed at a boiler to protect the
water users plumbing system is considered a(n):
Internal protection assembly
A pressure vacuum breaker is tested and a reading of I .0 psid for
the air inlet valve is obtained. The test report should show:
The air inlet valve is working properly
A pressure vacuum breaker air inlet valve is being field tested. The
air inlet valve does not open and the gauge reading drops to zero.
This means:
The air inlet is stuck closed
A double check valve assembly should be adequate protection for
which of the following installations:
A food processing application
When performing the field test on the first check of a double check
valve assembly with a differential gauge the reading on the gauge
will not drop below 10 psid with continual flow coming out of the
test cock #3. This would indicate the:
Number one shut off valve is leaking
The spring in the differential pressure relief valve of a reduced
pressure principle backflow prevention assembly tends to:
Open the relief valve
, A double check valve assembly is tested with a properly calibrated
differential gauge and one of the checks is found to be leaking. The
usual cause would be:
Damaged or dirty disc
When performing the field test on reduced pressure principle
backflow prevention assemblies the inlet shut-off valve must be:
open
All of the following items: records of backflow prevention
assemblies in the system, listed of certified backflow assembly
testers, list of approved backflow prevention assemblies and
backflow prevention test reports should be included as part of the:
Cross-connection control program
observing an RP prior to field testing, the differential pressure relief
valve is continuously discharging. This could indicate:
A plugged relief valve sensing line
While field testing the second check valve of a double check valve
assembly, the water level at #4 test cock recedes. What does this
imply?
Shut-off valve #2 leaks
If hydrochloric acid back flows into portable water, it would be
considered a:
Health hazard
If a food processing plant uses potable water in the processing of a
food grade product, the degree of hazard this water line would be
subjected to is:
A Non-health
The #1 shut-off valve if a reduced pressure principle backflow
prevention assembly is turned on to establish water pressure within
the assembly and the #2 shut off valve is closed. A continuous
discharge of water from the relief valve is an indication of a:
Fouled #1 check valve
Who is responsible to utilize the connect field test procedure on a
properly installed backflow prevention assembly:
2025 questions and
answers
A backflow prevention assembly installed at a boiler to protect the
water users plumbing system is considered a(n):
Internal protection assembly
A pressure vacuum breaker is tested and a reading of I .0 psid for
the air inlet valve is obtained. The test report should show:
The air inlet valve is working properly
A pressure vacuum breaker air inlet valve is being field tested. The
air inlet valve does not open and the gauge reading drops to zero.
This means:
The air inlet is stuck closed
A double check valve assembly should be adequate protection for
which of the following installations:
A food processing application
When performing the field test on the first check of a double check
valve assembly with a differential gauge the reading on the gauge
will not drop below 10 psid with continual flow coming out of the
test cock #3. This would indicate the:
Number one shut off valve is leaking
The spring in the differential pressure relief valve of a reduced
pressure principle backflow prevention assembly tends to:
Open the relief valve
, A double check valve assembly is tested with a properly calibrated
differential gauge and one of the checks is found to be leaking. The
usual cause would be:
Damaged or dirty disc
When performing the field test on reduced pressure principle
backflow prevention assemblies the inlet shut-off valve must be:
open
All of the following items: records of backflow prevention
assemblies in the system, listed of certified backflow assembly
testers, list of approved backflow prevention assemblies and
backflow prevention test reports should be included as part of the:
Cross-connection control program
observing an RP prior to field testing, the differential pressure relief
valve is continuously discharging. This could indicate:
A plugged relief valve sensing line
While field testing the second check valve of a double check valve
assembly, the water level at #4 test cock recedes. What does this
imply?
Shut-off valve #2 leaks
If hydrochloric acid back flows into portable water, it would be
considered a:
Health hazard
If a food processing plant uses potable water in the processing of a
food grade product, the degree of hazard this water line would be
subjected to is:
A Non-health
The #1 shut-off valve if a reduced pressure principle backflow
prevention assembly is turned on to establish water pressure within
the assembly and the #2 shut off valve is closed. A continuous
discharge of water from the relief valve is an indication of a:
Fouled #1 check valve
Who is responsible to utilize the connect field test procedure on a
properly installed backflow prevention assembly:
