BACKFLOW PREVENTION CLASS EXAM QUESTIONS AND VERIFIED CORRECT ANSWERS ALREADY PASSED LATEST UPDATE
7 views 0 purchase
Module
BACKFLOW PREVENTION
Institution
BACKFLOW PREVENTION
BACKFLOW PREVENTION CLASS EXAM QUESTIONS AND VERIFIED CORRECT ANSWERS ALREADY PASSED LATEST UPDATE
What does PSI A stand for?
Atmosphere
What does PSI D stand for?
Differential
How tall does a column need to be to make 1.0 PSI?
27.75 inches
What is the definition of back pressure?
An un...
backflow prevention class exam questions and verif
Written for
BACKFLOW PREVENTION
All documents for this subject (96)
Seller
Follow
AcademicSuperScores
Reviews received
Content preview
BACKFLOW PREVENTION CLASS EXAM QUESTIONS AND VERIFIED
CORRECT ANSWERS ALREADY PASSED LATEST UPDATE
What does PSI A stand for?
Atmosphere
What does PSI D stand for?
Differential
How tall does a column need to be to make 1.0 PSI?
27.75 inches
What is the definition of back pressure?
An unwanted reversal of flow
What are the two types of back flow?
Backpressure and Backsiphonage
What causes backsiphonage?
loss of pressure
what causes back pressure?
having a higher pressure downstream
What is a cross connection?
Potential or actual connection between potable water and a questionable source
Give an example of an indirect cross connection
hose in a pool
Give an example of a direct cross connection
Booster pump
What do you need to have a good control program?
Legal authorty, backflow assemblies, certified testers, defensible records.
What is the minimum height of an air gap
1 inch
What is the maximum height of an air gap
6 inches
, What kind of back flow is a barometric loop used for?
Backsiphonage
What is the height of a barometric loop?
33.9 feet tall
What is an AVB?
Atmospheric Vacuum Breaker
minimum height of an AVB
6 inches
What are the limits of an AVB? Is it testable?
Not testable, no shut off downstream, only 12 hours of use a day.
What is an RP?
A reduced pressure Backflow assembly
What is the minimum and maximum height of an RP?
12 inches to 36 inches from the ground. 1 foot from each wall.
What is a DC?
A double check back flow assembly
What is the maximum and minimum height of a DC?
12 to 36 inches off the ground
What are DC's usually made for?
Fire systems
Can you use a DC with a contaminant?
No
What needs to be present in backflow assemblies to be used with contaminates?
Some kind of relief
What is a PVB?
A pressure vacuum breaker back flow assembly.
Can you use a PVB with a contaminant?
Yes
How many test cocks does a PVB have?
2
What is an SVB?
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 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 AcademicSuperScores. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £6.93. You're not tied to anything after your purchase.
