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Backflow Test Prep 1 Questions and Answers with 100%
Complete Solutions UPDATED!!!
Design, material, and operational standards for DCVA & RPBA
are found in the - ANSWER AWWA standards
Approved backflow prevention assemblies must be designed to
be - ANSWER disassembled and repaired in line for all sizes
Check valves must be internally loaded and must be drip-tight -
ANSWER in the direction of flow with a minimum of 1 psi
differential
The maximum allowable pressure loss through a 3/4" DCVA is -
ANSWER 10 psi
The maximum allowable pressure loss through a 3/4" RPBA is -
ANSWER 20 psi
The markings required to be on all approved backflow
prevention assemblies include - ANSWER make, model,
direction of flow, & MWP
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As part of an inspection of the assembly a BAT must determine -
ANSWER if the assembly is currently listed and approved for the
orientation that it is installed
A cross-connection is defined as any actual or potential physical
connection between a public potable water system or the
consumer's potable water system and any source of non-
potable liquid, solid, or gas that could the potable water supply
by backflow - ANSWER contaminate
The undesirable reversal of flow of water or other substances
through a cross- connection into the public water system or
consumer's potable water system is - ANSWER backflow
Backsiphonage backflow is defined as backflow due to a
reduction in system pressure. What else must be present for -
ANSWER an opening to atmosphere
Which of the following may cause backpressure backflow? -
ANSWER any of the above (elevated piping, pumps, hot water
tanks)
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A direct cross-connection is subject to - ANSWER both
backsiphonage and backpressure
An approved air gap is a physical separation between - ANSWER
the end of the potable water supply pipe and the overflow rim
of the receiving vessel, a distance of at least 2 times supply pipe
diameter and never less than 1"
An approved air gap is acceptable as backflow protection for -
ANSWER Backpressure as well as Backsiphonage and both High
and Low Health Hazard
An approved backflow prevention assembly is an RPBA, RPDA,
DCVA, DCDA, PVBA, or SVBA of make, model and size that is -
ANSWER approved by the Washington State DOH, ODW
Newly installed backflow assemblies have a initial test primarily
due to: high rate of failure at the time of the - ANSWER debris
from within the supply piping
Backflow Test Prep 1 Questions and Answers with 100%
Complete Solutions UPDATED!!!
Design, material, and operational standards for DCVA & RPBA
are found in the - ANSWER AWWA standards
Approved backflow prevention assemblies must be designed to
be - ANSWER disassembled and repaired in line for all sizes
Check valves must be internally loaded and must be drip-tight -
ANSWER in the direction of flow with a minimum of 1 psi
differential
The maximum allowable pressure loss through a 3/4" DCVA is -
ANSWER 10 psi
The maximum allowable pressure loss through a 3/4" RPBA is -
ANSWER 20 psi
The markings required to be on all approved backflow
prevention assemblies include - ANSWER make, model,
direction of flow, & MWP
,2|Page
As part of an inspection of the assembly a BAT must determine -
ANSWER if the assembly is currently listed and approved for the
orientation that it is installed
A cross-connection is defined as any actual or potential physical
connection between a public potable water system or the
consumer's potable water system and any source of non-
potable liquid, solid, or gas that could the potable water supply
by backflow - ANSWER contaminate
The undesirable reversal of flow of water or other substances
through a cross- connection into the public water system or
consumer's potable water system is - ANSWER backflow
Backsiphonage backflow is defined as backflow due to a
reduction in system pressure. What else must be present for -
ANSWER an opening to atmosphere
Which of the following may cause backpressure backflow? -
ANSWER any of the above (elevated piping, pumps, hot water
tanks)
, 3|Page
A direct cross-connection is subject to - ANSWER both
backsiphonage and backpressure
An approved air gap is a physical separation between - ANSWER
the end of the potable water supply pipe and the overflow rim
of the receiving vessel, a distance of at least 2 times supply pipe
diameter and never less than 1"
An approved air gap is acceptable as backflow protection for -
ANSWER Backpressure as well as Backsiphonage and both High
and Low Health Hazard
An approved backflow prevention assembly is an RPBA, RPDA,
DCVA, DCDA, PVBA, or SVBA of make, model and size that is -
ANSWER approved by the Washington State DOH, ODW
Newly installed backflow assemblies have a initial test primarily
due to: high rate of failure at the time of the - ANSWER debris
from within the supply piping
