BLOCKFLOW PREVENTION ASSEMBLY TESTER EXAM /
NEWEST BLOCKFLOW PREVENTION ASSEMBLY REAL
TESTER EXAM COMPLETE ACTUAL EXAM QUESTIONS
AND CORRECT VERIFIED ANSWERS |ALREADY GRADED
A+ (BRAND NEW!!)
What is an actual cross connection? - ANSWER: Any arrangement of pipes, fittings, or
devices that connects a potable water supply directly to a non-potable source at all
times
What is an Air Gap? - ANSWER: The unobstructed vertical distance through the free
atmosphere between the lowest opening from any pipe or outlet supplying water to
a tank, plumbing fixture, or other container, and the overflow rim of that container
What does AVB stand for? - ANSWER: Atmospheric Vacuum Breaker
What is an Atmospheric Vacuum Breaker? - ANSWER: A mechanical device consisting
of a float check valve and an air-inlet port designed to prevent backsiphonage
What is an auxiliary supply? - ANSWER: Any water source or system, other than the
potable water supply, that may be available in the building or premises
What is backflow? - ANSWER: A hydraulic condition, caused by difference in
pressures, in which non-potable water or other fluids flow into a potable water
system
What is backpressure? - ANSWER: A backflow condition in which a pump, elevated
tank, boiler, 0r other means results in a downstream pressure greater than the
supply pressure
What is backsiphange? - ANSWER: A backflow condition in which the pressure in the
distribution system is less than atmospheric pressure (sub-atmospheric)
What is a bypass? - ANSWER: In cross-connection control, any pipe arrangement that
passes water around a protective device, casing it to be ineffective
What is the purpose of a check valve? - ANSWER: To allow flow in only one direction
What is a cross connection? - ANSWER: Any arrangement of pipes, fittings, fixtures,
or devices that connects a non-potable system to a potable water system
What does DCVA stand for? - ANSWER: Double Check Valve Assembly
What is a DCVA? - ANSWER: A testable mechanical device consisting of two
independently operating, spring-loaded check valves
, What is an overflow level? - ANSWER: The maximum height that water or liquid will
rise in a receptacle before it flows over the rim
What is a potable water source? - ANSWER: Water that is biologically, chemically,
and radiologically safe to drink
What is a potential cross connection? - ANSWER: Any arrangement of pipes, fittings,
or devices that indirectly connects a potable water supply to a non-potable water
source
What does PVB stand for? - ANSWER: Pressure Vacuum Breaker
What is a PVB? - ANSWER: A device designed to prevent backsiphonage, consisting
of once independently operating spring-loaded check valve and an independently
operating spring-loaded air-inlet valve
What does RPBP stand for? - ANSWER: Reduced Pressure Backflow Preventer
What does RPZBP stand for? - ANSWER: Reduced Pressure Zone Backflow Preventer
What is an RP? - ANSWER: A mechanical device consisting of two independently
operating, spring-loaded check valves with a reduced pressure zone between the
check valves
Containment - ANSWER: Protection on the service line - protects the potable water
supply and not the customer
Isolation - ANSWER: Protection on individual sources of hazard - provides internal
protection
What is a pollutant? - ANSWER: Non-health hazard - a substance that is aesthetically
objectionable but will not cause illness or death
What is a contaminant? - ANSWER: Health hazard - a substance that will cause illness
or death
Atmospheric pressure at sea level - ANSWER: 14.7 psi
psia - ANSWER: pounds per square inch, absolute - the total pressure, that is the sum
of gage pressure and atmospheric pressure
psig - ANSWER: pounds per square inch, gage - the pressure above atmospheric
pressure
Required minimum system pressure in GA - ANSWER: 20 psi
NEWEST BLOCKFLOW PREVENTION ASSEMBLY REAL
TESTER EXAM COMPLETE ACTUAL EXAM QUESTIONS
AND CORRECT VERIFIED ANSWERS |ALREADY GRADED
A+ (BRAND NEW!!)
What is an actual cross connection? - ANSWER: Any arrangement of pipes, fittings, or
devices that connects a potable water supply directly to a non-potable source at all
times
What is an Air Gap? - ANSWER: The unobstructed vertical distance through the free
atmosphere between the lowest opening from any pipe or outlet supplying water to
a tank, plumbing fixture, or other container, and the overflow rim of that container
What does AVB stand for? - ANSWER: Atmospheric Vacuum Breaker
What is an Atmospheric Vacuum Breaker? - ANSWER: A mechanical device consisting
of a float check valve and an air-inlet port designed to prevent backsiphonage
What is an auxiliary supply? - ANSWER: Any water source or system, other than the
potable water supply, that may be available in the building or premises
What is backflow? - ANSWER: A hydraulic condition, caused by difference in
pressures, in which non-potable water or other fluids flow into a potable water
system
What is backpressure? - ANSWER: A backflow condition in which a pump, elevated
tank, boiler, 0r other means results in a downstream pressure greater than the
supply pressure
What is backsiphange? - ANSWER: A backflow condition in which the pressure in the
distribution system is less than atmospheric pressure (sub-atmospheric)
What is a bypass? - ANSWER: In cross-connection control, any pipe arrangement that
passes water around a protective device, casing it to be ineffective
What is the purpose of a check valve? - ANSWER: To allow flow in only one direction
What is a cross connection? - ANSWER: Any arrangement of pipes, fittings, fixtures,
or devices that connects a non-potable system to a potable water system
What does DCVA stand for? - ANSWER: Double Check Valve Assembly
What is a DCVA? - ANSWER: A testable mechanical device consisting of two
independently operating, spring-loaded check valves
, What is an overflow level? - ANSWER: The maximum height that water or liquid will
rise in a receptacle before it flows over the rim
What is a potable water source? - ANSWER: Water that is biologically, chemically,
and radiologically safe to drink
What is a potential cross connection? - ANSWER: Any arrangement of pipes, fittings,
or devices that indirectly connects a potable water supply to a non-potable water
source
What does PVB stand for? - ANSWER: Pressure Vacuum Breaker
What is a PVB? - ANSWER: A device designed to prevent backsiphonage, consisting
of once independently operating spring-loaded check valve and an independently
operating spring-loaded air-inlet valve
What does RPBP stand for? - ANSWER: Reduced Pressure Backflow Preventer
What does RPZBP stand for? - ANSWER: Reduced Pressure Zone Backflow Preventer
What is an RP? - ANSWER: A mechanical device consisting of two independently
operating, spring-loaded check valves with a reduced pressure zone between the
check valves
Containment - ANSWER: Protection on the service line - protects the potable water
supply and not the customer
Isolation - ANSWER: Protection on individual sources of hazard - provides internal
protection
What is a pollutant? - ANSWER: Non-health hazard - a substance that is aesthetically
objectionable but will not cause illness or death
What is a contaminant? - ANSWER: Health hazard - a substance that will cause illness
or death
Atmospheric pressure at sea level - ANSWER: 14.7 psi
psia - ANSWER: pounds per square inch, absolute - the total pressure, that is the sum
of gage pressure and atmospheric pressure
psig - ANSWER: pounds per square inch, gage - the pressure above atmospheric
pressure
Required minimum system pressure in GA - ANSWER: 20 psi
