Backflow Troubleshooting Quiz exam ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
with correct answers ||\\||\\ ||\\||\\
While field testing the check valve of a pressure vacuum
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breaker, water continues to flow from the # 2 test cock . How do ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
you proceed ? - correct answers✔✔Open the bleed off valve
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until the flow slows to a slight drip.
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Well field testing the first check valve of a double check valve
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assembly, water continues to flow from the site tube. How do ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
you proceed? - correct answers✔✔Observe reading on gauge
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(first step). Open high side of bleed valve (second step).
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While field testing the check valve of a spill resistant pressure
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vacuum breaker, water continues to flow from the vent valve. ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
What does this imply? - correct answers✔✔Number 1 shut off
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valve is leaking. ||\\||\\ ||\\||\\
While field testing the differential pressure relief valve opening
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point of RP, it is found that the shut - off valve # 2 is leaking .
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How should the temporary bypass hose be connected to
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, compensate for the leak? - correct answers✔✔Test cock # 1 to ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
test cock # 4 ||\\||\\ ||\\||\\ ||\\||\\
While field testing the second check valve of a reduced pressure
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principle assembly, high side pressure is applied through test
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cock # 4 and the gage reading begins to increase. How do you
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
proceed? - correct answers✔✔Close the # 2 test cock. ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
While field testing the differential pressure relief valve opening
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point of an RP, the high side control needle valve is open, and
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the low side control needle valve is open 1/4 turn, however the
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reading on the gauge will not lower to the relief valve opening ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
point. What does this imply? - correct answers✔✔Number 2
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shut off valve is leaking ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
What are acceptable field test readings for a properly operating
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double check valve assembly? - correct answers✔✔Check valve ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
number 1: 1.0 PSID and above/ check valve number 2: 1.0 P ID ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
and above ||\\||\\
When testing an RP, upon closing the number 2 shut off valve
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
and the high and low side bleed valves, the gauge reading drops
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and differential pressure relief valve begins to discharge. How
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with correct answers ||\\||\\ ||\\||\\
While field testing the check valve of a pressure vacuum
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
breaker, water continues to flow from the # 2 test cock . How do ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
you proceed ? - correct answers✔✔Open the bleed off valve
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
until the flow slows to a slight drip.
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
Well field testing the first check valve of a double check valve
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
assembly, water continues to flow from the site tube. How do ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
you proceed? - correct answers✔✔Observe reading on gauge
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
(first step). Open high side of bleed valve (second step).
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
While field testing the check valve of a spill resistant pressure
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
vacuum breaker, water continues to flow from the vent valve. ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
What does this imply? - correct answers✔✔Number 1 shut off
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
valve is leaking. ||\\||\\ ||\\||\\
While field testing the differential pressure relief valve opening
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
point of RP, it is found that the shut - off valve # 2 is leaking .
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
How should the temporary bypass hose be connected to
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
, compensate for the leak? - correct answers✔✔Test cock # 1 to ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
test cock # 4 ||\\||\\ ||\\||\\ ||\\||\\
While field testing the second check valve of a reduced pressure
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
principle assembly, high side pressure is applied through test
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
cock # 4 and the gage reading begins to increase. How do you
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
proceed? - correct answers✔✔Close the # 2 test cock. ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
While field testing the differential pressure relief valve opening
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
point of an RP, the high side control needle valve is open, and
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
the low side control needle valve is open 1/4 turn, however the
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
reading on the gauge will not lower to the relief valve opening ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
point. What does this imply? - correct answers✔✔Number 2
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
shut off valve is leaking ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
What are acceptable field test readings for a properly operating
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
double check valve assembly? - correct answers✔✔Check valve ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
number 1: 1.0 PSID and above/ check valve number 2: 1.0 P ID ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
and above ||\\||\\
When testing an RP, upon closing the number 2 shut off valve
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
and the high and low side bleed valves, the gauge reading drops
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
and differential pressure relief valve begins to discharge. How
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