Double Check Valve Assembly - ANSWER A testable mechanical device consisting of
two independently operating, spring-loaded check valves, four test cocks, and two full port
shut off valves
the purpose of an ASSE 1018 trap primer is to - ANSWER maintain a trap seal
a laboratory faucet vacuum breaker must contain - ANSWER two independently acting
check valves
ASSE 1060 - ANSWER outdoor enclosures standard, freeze protective enclosures must
provide protection to a remedies of -30 f
device - ANSWER a backflow prevents generally consisting of a single valve body not
capable of being field tested using a differential gauge
to stop a siphonic actin within a potable water system, we must - ANSWER admit air
into the system
waterborne diseases - ANSWER typhoid, cholera and giardiasis
a double check detector assembly installed on a antifreeze loop area requires -
ANSWER replacement
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, removal of the relief valve spring on a reduced pressure principle assembly will cause the
assembly to - ANSWER become a approved double check valve assembly
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 - ANSWER 138.75
continuing discharge for a reduced pressure principle assembly during a no flow condition
may be caused by - ANSWER a debris fouling the number one check valve
negligence - ANSWER not meeting ones responsibility and causing harm
residual pressure - ANSWER the pressure available at a fixture or water outlet after
allowances are made for pressure
natural or propane fires domestic water heatersbare protected from excess pressure by the
installation of a.. - ANSWER thermal expansion tank
installation of backflow assemblies results in - ANSWER decrease in system water
pressure
according to the manufacturers instructions valve levers on a t&p relief valve should be
operated at least - ANSWER every 12 months
the installation of backflow asswmblies result in - ANSWER velocity spike
when installaing a thermal expanaion tank, you should always - ANSWER match the
tank air pressure to the syatem water pressure
what assembly creates a closed water system - ANSWER prz, double check valve
assembly, pressure reducing valve, dual check valve
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