Backflow Test questions with accurate answers
A backflow prevention assembly should make and abnormal humming
noise during operation under which of the following Ans✓✓✓ D.
Never
A certified backflow preventer test and repair technician is a ______
water system operator Ans✓✓✓ C. Grade 6
A defensible backflow prevention program will maintain records on
which of the following Ans✓✓✓ D. All of the above
A: backflow prevention assemblies within the system
B: complete list of certified backflow assembly testers
C: back flow prevention test reports
A differential pressure gauge is used to field test Ans✓✓✓ D. Bath A
and C
A: reduced pressure principle backflow assemblies
C: pressure vacuum breakers
A differential pressure gauge should be checked for accuracy through
the use of Ans✓✓✓ B. Two water columns or a mercury manometer
A duplex gauge can best be described as Ans✓✓✓ C. Two pressure
gauges in one gauge head with one having a bypass house
,A duplex pressure gauge is used to test Ans✓✓✓ B. Double check
valve assemblies
A perfect vacuum (at sea level) will raise water in a pipe a maximum of
Ans✓✓✓ C. 33.9 feet
A pressure vacuum breaker may be installed with a Ans✓✓✓ A.
Control valve downstream
A pressure vacuum breaker may be used for backflow protection for
which of the following conditions Ans✓✓✓ C. Backsiphonage of low
hazards
A reduced pressure principle backflow prevention assembly shall be
installed Ans✓✓✓ C. Readily accessible above grade
A reduces pressure principle backflow prevention assembly must be
installed Ans✓✓✓ A. 12 inches above floor
A service protection backflow prevention assembly is meant to protect
Ans✓✓✓ C. Public water distribution system
A tester is required to report backflow prevention field test information
to Ans✓✓✓ D. Both A and C
A: administrative authority
C: the owner of the backflow assembly
, A total cross connection program should be coordinated with Ans✓✓✓
D. All of the above
A: plumbing inspector
B: local health department
C: water purveyor
A vacuum breaker can be used to protect against Ans✓✓✓ B.
Backsiphonage
A vacuum relief valve should be installed Ans✓✓✓ D. Never used as a
backflow prevention assembly
A water supplier shall interrupt water service to a user/customer when
Ans✓✓✓ A. Provisions in the cross-connection control ordinance or
regulations are not met
According to most plumbing codes, a two in atmospheric vacuum
breaker, used on irrigation systems, shall be installed at least
___________ Inches above down stream piping outlets Ans✓✓✓ D.
None of the above
A: 3
B: 5
C: 18
A backflow prevention assembly should make and abnormal humming
noise during operation under which of the following Ans✓✓✓ D.
Never
A certified backflow preventer test and repair technician is a ______
water system operator Ans✓✓✓ C. Grade 6
A defensible backflow prevention program will maintain records on
which of the following Ans✓✓✓ D. All of the above
A: backflow prevention assemblies within the system
B: complete list of certified backflow assembly testers
C: back flow prevention test reports
A differential pressure gauge is used to field test Ans✓✓✓ D. Bath A
and C
A: reduced pressure principle backflow assemblies
C: pressure vacuum breakers
A differential pressure gauge should be checked for accuracy through
the use of Ans✓✓✓ B. Two water columns or a mercury manometer
A duplex gauge can best be described as Ans✓✓✓ C. Two pressure
gauges in one gauge head with one having a bypass house
,A duplex pressure gauge is used to test Ans✓✓✓ B. Double check
valve assemblies
A perfect vacuum (at sea level) will raise water in a pipe a maximum of
Ans✓✓✓ C. 33.9 feet
A pressure vacuum breaker may be installed with a Ans✓✓✓ A.
Control valve downstream
A pressure vacuum breaker may be used for backflow protection for
which of the following conditions Ans✓✓✓ C. Backsiphonage of low
hazards
A reduced pressure principle backflow prevention assembly shall be
installed Ans✓✓✓ C. Readily accessible above grade
A reduces pressure principle backflow prevention assembly must be
installed Ans✓✓✓ A. 12 inches above floor
A service protection backflow prevention assembly is meant to protect
Ans✓✓✓ C. Public water distribution system
A tester is required to report backflow prevention field test information
to Ans✓✓✓ D. Both A and C
A: administrative authority
C: the owner of the backflow assembly
, A total cross connection program should be coordinated with Ans✓✓✓
D. All of the above
A: plumbing inspector
B: local health department
C: water purveyor
A vacuum breaker can be used to protect against Ans✓✓✓ B.
Backsiphonage
A vacuum relief valve should be installed Ans✓✓✓ D. Never used as a
backflow prevention assembly
A water supplier shall interrupt water service to a user/customer when
Ans✓✓✓ A. Provisions in the cross-connection control ordinance or
regulations are not met
According to most plumbing codes, a two in atmospheric vacuum
breaker, used on irrigation systems, shall be installed at least
___________ Inches above down stream piping outlets Ans✓✓✓ D.
None of the above
A: 3
B: 5
C: 18
