BACKFLOW PREVENTION STUDY GUIDE (CHARLESTON WATER
SYSTEMS) EXAM QUESTIONS WITH COMPLETE SOLUTIONS
VERIFIED GRADED A+
Name the two types of backflow.
Backpressure and Backsiphonage
All of the following may be considered acceptable for containment of a building
with the exception of a(n):
a) Air Gap
b) Double Check Valve Assembly
c) Residential Dual Check
d) Reduced Pressure Backflow Assembly
e) Pressure Vacuum Breaker Assembly
e) Pressure Vacuum Breaker Assembly
A Reduced Pressure Backflow Assembly (RP) protects against:
a) High hazard, Backpressure
b) High hazard, Backsiphonage
c) Low hazard, Backpressure & Backsiphonage
d) All of the above
d) All of the above
How many test cocks are on a Reduced Pressure Backflow Assembly?
4
, How many test cocks are on a Double Check Valve Assembly?
4
How many test cocks are on a Pressure Vacuum Breaker Assembly?
2
How many test cocks are on an Atmospheric Vacuum Breaker?
0
True/False: Test Gauges should be properly stored to ensure they are not
damaged when not in use.
True
A Backflow Preventer for Beverage Dispensing Equipment protects against
carbon dioxide from entering the potable water supply from which type of
backflow?
a) Backpressure
b) Backsiphonage
c) Both A & B
d) None of the above
c) Both A & B
A Residential Dual Check Backflow Preventer has:
a) Two Independently Acting Checks
b) Two Independently Acting Checks and an Atmospheric Port
c) Two Independently Acting Checks with a relief valve
d) None of the Above
a) Two Independently Acting Checks
SYSTEMS) EXAM QUESTIONS WITH COMPLETE SOLUTIONS
VERIFIED GRADED A+
Name the two types of backflow.
Backpressure and Backsiphonage
All of the following may be considered acceptable for containment of a building
with the exception of a(n):
a) Air Gap
b) Double Check Valve Assembly
c) Residential Dual Check
d) Reduced Pressure Backflow Assembly
e) Pressure Vacuum Breaker Assembly
e) Pressure Vacuum Breaker Assembly
A Reduced Pressure Backflow Assembly (RP) protects against:
a) High hazard, Backpressure
b) High hazard, Backsiphonage
c) Low hazard, Backpressure & Backsiphonage
d) All of the above
d) All of the above
How many test cocks are on a Reduced Pressure Backflow Assembly?
4
, How many test cocks are on a Double Check Valve Assembly?
4
How many test cocks are on a Pressure Vacuum Breaker Assembly?
2
How many test cocks are on an Atmospheric Vacuum Breaker?
0
True/False: Test Gauges should be properly stored to ensure they are not
damaged when not in use.
True
A Backflow Preventer for Beverage Dispensing Equipment protects against
carbon dioxide from entering the potable water supply from which type of
backflow?
a) Backpressure
b) Backsiphonage
c) Both A & B
d) None of the above
c) Both A & B
A Residential Dual Check Backflow Preventer has:
a) Two Independently Acting Checks
b) Two Independently Acting Checks and an Atmospheric Port
c) Two Independently Acting Checks with a relief valve
d) None of the Above
a) Two Independently Acting Checks
