ASSE Backflow Recertification EXAM Questions AND Correct Answers
"Containment" protection - ✔✔Offers no protection to individuals in the facility
A ___ would be least likely to require a RPZ to be installed as contaminant protection?
A) sewage treatment plant
B) plating plant
C) single family dwelling
D) hospital - ✔✔C) single family dwelling
A backflow prevention assembly is required to have what minimum markings - ✔✔Manufacturers name,
type of assembly size and model number, rated working pressure, rated working temperature
A Backflow test gauge (differential pressure gauge) should be stored with all needles - ✔✔Opened and
hosed drained
A check valve in an approved backflow assembly must be tight when - ✔✔The assembly is subject to any
backflow
A chemically treated boiler system would require what type of Backflow on the potable water system -
✔✔RPZ
A differential pressure gauge is used in the testing of - ✔✔Double checks and RPZs
A double check backflow contains one - ✔✔Flow meter/indicator
A double check backflow may not be used to protect against - ✔✔Contaminants
A double check can be used on a system with antifreeze - ✔✔Never
, A double check is made up of - ✔✔2 check valves and 2 shutoff valves
A double check that has equal pressure between a checks inlet and outlet suggests that - ✔✔Check has
failed
A double check will protect the potable water supply from - ✔✔Low hazard backpressure or
backsiphonage
A dual check is used to protect against - ✔✔Low hazard backpressure and backsiphonage
A gauge installed at the bottom of an open tank, containing water 10 feet deep, would indicate what
pressure reading? - ✔✔4.3 psi
A high hazard classification includes which of the following?
A) radioactive waste
B) raw sewage
C) caustic soda
D) all of the above - ✔✔D) all of the above
A hose connection is a high hazard protection valve that contains 2 - ✔✔Check valves
a leaking check valve may be caused by? - ✔✔Dirty or damaged check disc, damaged check seat, broken
or damaged spring, guide members hanging up (all of the above)
A potential backpressure backflow plumbing connection is - ✔✔A process water line
A pressure gauge reading of 50 psi at the base of a column of water would indicate that the column was
approximately __ feet high - ✔✔115.5 (constant is 1 psi= 2.31 ft)
A pressure of 75 psi is equivalent to ___ head of water - ✔✔173.25 feet
"Containment" protection - ✔✔Offers no protection to individuals in the facility
A ___ would be least likely to require a RPZ to be installed as contaminant protection?
A) sewage treatment plant
B) plating plant
C) single family dwelling
D) hospital - ✔✔C) single family dwelling
A backflow prevention assembly is required to have what minimum markings - ✔✔Manufacturers name,
type of assembly size and model number, rated working pressure, rated working temperature
A Backflow test gauge (differential pressure gauge) should be stored with all needles - ✔✔Opened and
hosed drained
A check valve in an approved backflow assembly must be tight when - ✔✔The assembly is subject to any
backflow
A chemically treated boiler system would require what type of Backflow on the potable water system -
✔✔RPZ
A differential pressure gauge is used in the testing of - ✔✔Double checks and RPZs
A double check backflow contains one - ✔✔Flow meter/indicator
A double check backflow may not be used to protect against - ✔✔Contaminants
A double check can be used on a system with antifreeze - ✔✔Never
, A double check is made up of - ✔✔2 check valves and 2 shutoff valves
A double check that has equal pressure between a checks inlet and outlet suggests that - ✔✔Check has
failed
A double check will protect the potable water supply from - ✔✔Low hazard backpressure or
backsiphonage
A dual check is used to protect against - ✔✔Low hazard backpressure and backsiphonage
A gauge installed at the bottom of an open tank, containing water 10 feet deep, would indicate what
pressure reading? - ✔✔4.3 psi
A high hazard classification includes which of the following?
A) radioactive waste
B) raw sewage
C) caustic soda
D) all of the above - ✔✔D) all of the above
A hose connection is a high hazard protection valve that contains 2 - ✔✔Check valves
a leaking check valve may be caused by? - ✔✔Dirty or damaged check disc, damaged check seat, broken
or damaged spring, guide members hanging up (all of the above)
A potential backpressure backflow plumbing connection is - ✔✔A process water line
A pressure gauge reading of 50 psi at the base of a column of water would indicate that the column was
approximately __ feet high - ✔✔115.5 (constant is 1 psi= 2.31 ft)
A pressure of 75 psi is equivalent to ___ head of water - ✔✔173.25 feet
