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Backflow Final QUESTIONS AND CORRECT ANSWERS GRADED A+ 2024/2025 $11.49   Add to cart

Exam (elaborations)

Backflow Final QUESTIONS AND CORRECT ANSWERS GRADED A+ 2024/2025

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  • Course
  • BACKFLOW PREVENTION
  • Institution
  • BACKFLOW PREVENTION

Backflow Final QUESTIONS AND CORRECT ANSWERS GRADED A+ 2024/2025

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  • September 4, 2024
  • 18
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • backflow prevention
  • BACKFLOW PREVENTION
  • BACKFLOW PREVENTION
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Backflow Final

All the subsequent are required elements of an atmospheric vacuum breaker (asse1001)
except a

Air inlet go with the flow valve

The body

Air cover

Shutoff valve - ANSShutoff valve

A single take a look at valve for a backflow prevention is acceptable

For low risk

For non-threat residential
packages

On boilers only

Never - ANSNever

The following absolute pressure ought to purpose backsiphonage to arise in a hydraulic
device (distribution gadget) at sea degree

10.Five psia

15.0 psia

33.Nine psia

100 psia - ANS10.5 psia

It is the encouraged that double check backflow prevention assembly (asse 1015) be
established with its lowest factor at the very least

Six inches from wall

Twelve inches from highest factor of use

Twelve inches above the encompassing ground or ground

,Thirty inches above the surrounding ground or ground - ANS12 inches above surrounding
ground

When checking out a double test valve backflow prevention meeting (asse1015) range two
shutoff valve have to be closed first to

Prevent backpressure throughout the take a look at

Prevent backsiphonage in the course of the take a look at

Hold water within the downstream piping

Maintain stress in the meeting - ANSMaintain strain in the meeting

Which of the following ought to be considered when installing a cross connection manage
device or meeting?

Sidewall clearances

Degree of threat

Distance of backflow device
from floor

All above - ANSAll above

Backflow can occur on every occasion the strain in a potable water machine is ______ the
pressure in a non potable piping machine and the 2 systems are physically connected

Greater than

Less than

Equal to

About identical as - ANSLess than

The required wide variety of check cocks on a inch and smaller pressure vacuum breaker
meeting (asse 1020) is

None

One

Two

Three - ANSTwo

, The springs on the two check valves of a reduced stress principle backflow preventer (asse
1013) are

Identical

Externally loaded

Not interchangeable

Interchangeable - ANSNot interchangeable

The spring alleviation valve meeting of a discounted strain principle backflow preventer
(asse 1013) acts to

Force the relaxation valve open

Force the relief valve closed

Force the first test valve open

Force the first check valve closed - ANSForce the relief valve closed

Reduced strain precept backflow preventer (asse 1013) shall no longer be set up in a
vertical role except

It is an present water service

The water strain exceeds a hundred and sixty psi

It is a pit instillation

The meeting has been examined and accepted for installation in a vertical position - ANSThe
assembly has been tested and authorized for set up in a vertical role

The type of protection furnished by using an air gap separation is

Backsiphonage low risk

Backpreassure low chance

Backpreassure high and low danger

Backsiphonage excessive and coffee threat - ANSBacksiphonage high and coffee risk

When the water velocity inside the pipe increases the gauge stress

Increases

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