Backflow Tester Exam Questions and Answers Graded A+
2 views 0 purchase
Course
Back Flow
Institution
Back Flow
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 componen...
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
The RP number 2 check valve is loaded to close the valve with a minimum pressure of ✔✔1 psid
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Layer. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.99. You're not tied to anything after your purchase.
