BACKFLOW PREVENTION ASSEMBLY TESTER
PRACTICE EXAM
Terms in this set (100)
A 2" AVB when used on 6" above all downstream piping
irrigation systemsterm-15
shall be instilled
(A) 6" above all downstream
piping
(B) 18" above all
downstream piping
(C) 24" above all
downstream piping
(D) 27 3/4" above all
downstream piping
An absolute perssure of 25 10 psi
psiaa (at sea level) is equal
to approximately
(A) 5 psi
(B) 10 psi
(C) 20 psi
(D) 25 psi
,An absolute pressure of 25 10 pisg
psia is equal to
approximately what value in
gauge pressure ( PSIG )
(A) 5 psig
(B) 10 psig
(C) 15 psig
(D) 25 psig
The accuracy of field test Annualiy
gauges should be checked
(A) After every test
(B) Annualiy
(C) Monthiy
(D) Upon purchase of the
gauge
After repairing RP the A Fouied #1 check or C Springs installed in the wrong
assembly is restored to checks
proper operation and the
relief valve continuousiy
dumps what is the most
probabie caues
(A) Fouied #1 check
(B) Leaking #2 shut off
(C) Springs installed in the
wrong checks
(D) A or C
,An air gap muct have Two times the fill pipe diameter what a minimum 1"
separation
(A) Two times the pipe
diameter
(B) A 2" seqaration at flood
level rim
(C) Two times the fill pipe
diameter what a minimum 1"
separation
(D) A maximun of 1" above
the overflow rim
Any pressure less than that Vacuum
exerted by the atmosphere
is defined as
(A) Slphon
(B) Vacuum
(C) Backflow
(D) Absolute Pressure
Ater closing the #2 shit off #1 check is fouled
while testing a RP the relief
valve dumps What is the
most probable cause
(A) #1 check is fouled
(B) #2 check is fouled
(C) Reilef valve is fouled
open
(D) #2 check is fouled
, An atmospheric vauum Under no circumstances
breaker may have
downstream shut off valve
(A) When located 12" aove
the flood level rim
(B) When a reilef valve is
installed downstrem
(C) Under no circumstances
(D) if the shut off valve
closing
An AVB must be installed 6" above the highesrt outlet all downstream piping
(A) 6" above the highesrt
outlet all downstream
piping
(B) 6 times the pipe
diameter above the highest
point of use
(C) 12" above the highesrt
outlet all downstream
piping
(D) 2.31 feet above point of
use
Backflow in a water supply Backpressure and Backsiphonage
can be caused by
(A) Backpressure only
(B) A Barometric Loop
(C) Backsiphonage only
(D) Backpressure and
Backsiphonage
PRACTICE EXAM
Terms in this set (100)
A 2" AVB when used on 6" above all downstream piping
irrigation systemsterm-15
shall be instilled
(A) 6" above all downstream
piping
(B) 18" above all
downstream piping
(C) 24" above all
downstream piping
(D) 27 3/4" above all
downstream piping
An absolute perssure of 25 10 psi
psiaa (at sea level) is equal
to approximately
(A) 5 psi
(B) 10 psi
(C) 20 psi
(D) 25 psi
,An absolute pressure of 25 10 pisg
psia is equal to
approximately what value in
gauge pressure ( PSIG )
(A) 5 psig
(B) 10 psig
(C) 15 psig
(D) 25 psig
The accuracy of field test Annualiy
gauges should be checked
(A) After every test
(B) Annualiy
(C) Monthiy
(D) Upon purchase of the
gauge
After repairing RP the A Fouied #1 check or C Springs installed in the wrong
assembly is restored to checks
proper operation and the
relief valve continuousiy
dumps what is the most
probabie caues
(A) Fouied #1 check
(B) Leaking #2 shut off
(C) Springs installed in the
wrong checks
(D) A or C
,An air gap muct have Two times the fill pipe diameter what a minimum 1"
separation
(A) Two times the pipe
diameter
(B) A 2" seqaration at flood
level rim
(C) Two times the fill pipe
diameter what a minimum 1"
separation
(D) A maximun of 1" above
the overflow rim
Any pressure less than that Vacuum
exerted by the atmosphere
is defined as
(A) Slphon
(B) Vacuum
(C) Backflow
(D) Absolute Pressure
Ater closing the #2 shit off #1 check is fouled
while testing a RP the relief
valve dumps What is the
most probable cause
(A) #1 check is fouled
(B) #2 check is fouled
(C) Reilef valve is fouled
open
(D) #2 check is fouled
, An atmospheric vauum Under no circumstances
breaker may have
downstream shut off valve
(A) When located 12" aove
the flood level rim
(B) When a reilef valve is
installed downstrem
(C) Under no circumstances
(D) if the shut off valve
closing
An AVB must be installed 6" above the highesrt outlet all downstream piping
(A) 6" above the highesrt
outlet all downstream
piping
(B) 6 times the pipe
diameter above the highest
point of use
(C) 12" above the highesrt
outlet all downstream
piping
(D) 2.31 feet above point of
use
Backflow in a water supply Backpressure and Backsiphonage
can be caused by
(A) Backpressure only
(B) A Barometric Loop
(C) Backsiphonage only
(D) Backpressure and
Backsiphonage
