backflow exam question comprehensive Questions and
Answers with 100% Correct Answers | Latest Version
Question 1.
Double Check Valve Assembly
Correct Answer: A testable mechanical device consisting of two independently
operating, spring-loaded check valves, four test cocks, and two full port shut off
valves
Question 2.
the purpose of an ASSE 1018 trap primer is to
Correct Answer: maintain a trap seal
Question 3.
a laboratory faucet vacuum breaker must contain
Correct Answer: two independently acting check valves
Question 4.
ASSE 1060
Correct Answer: outdoor enclosures standard, freeze protective enclosures must
provide protection to a remedies of -30 f
Question 5.
device
Correct Answer: a backflow prevents generally consisting of a single valve body not
capable of being field tested using a differential gauge
Question 6.
to stop a siphonic actin within a potable water system, we must
Correct Answer: admit air into the system
Question 7.
waterborne diseases
Correct Answer: typhoid, cholera and giardiasis
Question 8.
a double check detector assembly installed on a antifreeze loop area re- quires
Correct Answer: replacement
, Question 9.
removal of the relief valve spring on a reduced pressure principle assembly will cause the
assembly to
Correct Answer: become a approved double check valve assembly
Question 10.
when testing the first check valve in the direction of flow on a reduced pressure assembly
using a sight tube the tube must be a minimum of
Correct Answer: 138.75
Question 11.
continuing discharge for a reduced pressure principle assembly during a no flow condition
may be caused by
Correct Answer: a debris fouling the number one check valve
Question 12.
negligence
Correct Answer: not meeting ones responsibility and causing harm
Question 13.
residual pressure
Correct Answer: the pressure available at a fixture or water outlet after allowances are
made for pressure
Question 14.
natural or propane fires domestic water heatersbare protected from excess pressure by the
installation of a..
Correct Answer: thermal expansion tank
Question 15.
installation of backflow assemblies re- sults in
Correct Answer: decrease in system water pressure
Question 16.
according to the manufacturers instructions valve levers on a t&p relief valve should be
operated at least
Correct Answer: every 12 months
Answers with 100% Correct Answers | Latest Version
Question 1.
Double Check Valve Assembly
Correct Answer: A testable mechanical device consisting of two independently
operating, spring-loaded check valves, four test cocks, and two full port shut off
valves
Question 2.
the purpose of an ASSE 1018 trap primer is to
Correct Answer: maintain a trap seal
Question 3.
a laboratory faucet vacuum breaker must contain
Correct Answer: two independently acting check valves
Question 4.
ASSE 1060
Correct Answer: outdoor enclosures standard, freeze protective enclosures must
provide protection to a remedies of -30 f
Question 5.
device
Correct Answer: a backflow prevents generally consisting of a single valve body not
capable of being field tested using a differential gauge
Question 6.
to stop a siphonic actin within a potable water system, we must
Correct Answer: admit air into the system
Question 7.
waterborne diseases
Correct Answer: typhoid, cholera and giardiasis
Question 8.
a double check detector assembly installed on a antifreeze loop area re- quires
Correct Answer: replacement
, Question 9.
removal of the relief valve spring on a reduced pressure principle assembly will cause the
assembly to
Correct Answer: become a approved double check valve assembly
Question 10.
when testing the first check valve in the direction of flow on a reduced pressure assembly
using a sight tube the tube must be a minimum of
Correct Answer: 138.75
Question 11.
continuing discharge for a reduced pressure principle assembly during a no flow condition
may be caused by
Correct Answer: a debris fouling the number one check valve
Question 12.
negligence
Correct Answer: not meeting ones responsibility and causing harm
Question 13.
residual pressure
Correct Answer: the pressure available at a fixture or water outlet after allowances are
made for pressure
Question 14.
natural or propane fires domestic water heatersbare protected from excess pressure by the
installation of a..
Correct Answer: thermal expansion tank
Question 15.
installation of backflow assemblies re- sults in
Correct Answer: decrease in system water pressure
Question 16.
according to the manufacturers instructions valve levers on a t&p relief valve should be
operated at least
Correct Answer: every 12 months
