QUESTIONS AND CORRECT ANSWERS | GRADED A+ | LATEST
EXAM | VERIFIED ANSWERS
If the air inlet valve on a The check valve
SVB is open when loosening
the vent valve, what is
leaking?
Why might the high side bleed Leaking shut off #1
needle
valve need to be opened
more than 1/4 of a turn
while testing the air inlet
valve on a SVB?
Why might the low side Leaking shut off #2 with water use downstream
control valve need to be
opened more than 1/4 of a
turn when testing the RV
opening point on a RP?
When testing for the PSID Shut off #2 is leaking with backpressure from the system
across check valve #2 on a
DC assembly, water
continues to flow from the
sight tube on test cock #4.
What does that indicate
(assuming nothing unusual
was found while testing check
valve #1)?
The shut off valves and test Resilient seated
cocks on
approved backflow
prevention assemblies are
, required to be
While testing the air inlet Shutoff valve #2 is leaking
opening point on a PVB, the
air inlet does not open and
the gage drops to 0. What
does this indicate?
While testing the air inlet Shutoff valve #1 is leaking
opening point on a PVB, the
air inlet does not open and
the gage does not drop to
the air inlet opening point.
What does this indicate?
While testing the check Shutoff valve #1 is leaking
valve closing point on a
PVB water continues to
flow out of test cock #2.
What does this indicate?
What is a potable water Water that is biologically, chemically, and radiologically safe to
source? drink
Any arrangement of pipes, fittings, or devices that
What is a potential cross
connection? indirectly connects a potable water supply to a non-
potable water source
What does PVB stand for? Pressure Vacuum Breaker
A device designed to prevent backsiphonage, consisting of once
What is a PVB? independently
operating spring-loaded check valve and an
independently operating spring-loaded air-inlet valve
What does RPBP stand for? Reduced Pressure Backflow Preventer
What does RPZBP stand for? Reduced Pressure Zone Backflow Preventer
A mechanical device consisting of two independently
What is an RP?
operating, spring-loaded check valves with a reduced
pressure zone between the check valves
Protection on the service line - protects the potable
Containment
water supply and not the customer
Isolation Protection on individual sources of hazard - provides internal