BACKFLOW / CROSS CONNECTION
TEST PRACTICE || 2026 LATEST
UPDATE!!!
14.71 Pounds per square inch - ANSWERwhat is the means value of atmospheric
pressure at sea level
Backsiphonage - ANSWERA backflow condition in which the pressure in the distribution
system is less than atmospheric pressure (subatmospheric)
Cross Connection - ANSWERA byass arrangement or jumper connection around a
backflow prevention device is considered a....
Both Backsiphonage and BackPressure - ANSWERA direct cross-connection is a cross
connection that is subject to ...
Pressure Vacuum Breaker - ANSWERA device designed to prevent backsiphonge,
consisting of one independently operating spring-loaded check valve and an
independently operating spring loaded air-inlet valve.
Double Check Valve Assembly - ANSWERAssembly composed of two independently
acting, approved check valves , including tightly closing resilient seated shut off valves
attached at each end of the assembly and fitted with properly located resilient seated
test cocks
False - ANSWERBackflow from a submerged inlet to a plating solution tank is
prevented only through installation of a double check valve
air gap - ANSWERThe highest possible backflow protection is provided by....
Dynamic Pressure - ANSWERthe pressure associated with the movement of a fluid
Twice the diameter of the pipe and no less than 1 inch - ANSWERAn approved air gap
shall be at what vertical distance above the overflow rim and no less than what
distance?
Absolute Pressure - ANSWERPressure measured on a scale where a perfect vacuum is
zero. th sume of gauge pressure and atmospheric pressure.
spill resistant vacuum breaker assembly - ANSWERequipped with a properly located
resilient test cock, a properly located bleed/ vent port and a tightly closing resilient
seated shot off valves attached to each end of the assembly
, Water Purveyor - ANSWERWho has the primary responsibility in cross connection
control to protect the public water supply ( containment)
True - ANSWERA reduced pressure principal is a device that can be used to protect
against pollution, contamination, back pressure and back siphonage.
Isolation - ANSWERA method of back flow prevention at the point of use of the
customer's water supply
Barometric Loop - ANSWERA vertical loop of pipe, rising to a height sufficient to
prevent back-siphonage from occurring in the potable water supply pipe. (Approximately
35 feet, depending on the weight of the atmosphere.)
15 working days - ANSWERIn Orange Cunty, a certified tester is required to submit
their test report from with in how many days of testing a backflow device?
Health and Safety Code - ANSWERWho gives the authority to LOCAL HEALTH
agencies to administer the cross connection program and tester certification program
The flood level rim of the plumbing fixture - ANSWERAn Air Gap is measured from the
exit of the piping to what?
33.9 ft - ANSWERA perfect vacuum at sea level can pull a water column approximately
how many feet?
Isolation - ANSWERBack flow prevention at the point of use is define as?
Reduced Pressure Principle Backflow Assembly - ANSWERFor Containment protection
in a high hazard situation, the minimum backflow prevention device required is
Differential Pressure - ANSWERThe difference in pressure between two locations in a
piping system
Differenteial pressure gauge - ANSWERType of equipment used to test backflow
assemblies such as RP, DC, PVB, SVB
Containment - ANSWERMethod of backflow prevention at the point of connection
(meter) of the consumers water supply
Nevada Administrative Code (NAC) 445-A - ANSWERWhat is the Legal Document in
Nevada that governs Cross Connection control and backflow prevention
The Safe Drinking Water Act ;amended 1996 - ANSWERThe Federal Guidelines that
regulate the safety of drinking water are contained in.
TEST PRACTICE || 2026 LATEST
UPDATE!!!
14.71 Pounds per square inch - ANSWERwhat is the means value of atmospheric
pressure at sea level
Backsiphonage - ANSWERA backflow condition in which the pressure in the distribution
system is less than atmospheric pressure (subatmospheric)
Cross Connection - ANSWERA byass arrangement or jumper connection around a
backflow prevention device is considered a....
Both Backsiphonage and BackPressure - ANSWERA direct cross-connection is a cross
connection that is subject to ...
Pressure Vacuum Breaker - ANSWERA device designed to prevent backsiphonge,
consisting of one independently operating spring-loaded check valve and an
independently operating spring loaded air-inlet valve.
Double Check Valve Assembly - ANSWERAssembly composed of two independently
acting, approved check valves , including tightly closing resilient seated shut off valves
attached at each end of the assembly and fitted with properly located resilient seated
test cocks
False - ANSWERBackflow from a submerged inlet to a plating solution tank is
prevented only through installation of a double check valve
air gap - ANSWERThe highest possible backflow protection is provided by....
Dynamic Pressure - ANSWERthe pressure associated with the movement of a fluid
Twice the diameter of the pipe and no less than 1 inch - ANSWERAn approved air gap
shall be at what vertical distance above the overflow rim and no less than what
distance?
Absolute Pressure - ANSWERPressure measured on a scale where a perfect vacuum is
zero. th sume of gauge pressure and atmospheric pressure.
spill resistant vacuum breaker assembly - ANSWERequipped with a properly located
resilient test cock, a properly located bleed/ vent port and a tightly closing resilient
seated shot off valves attached to each end of the assembly
, Water Purveyor - ANSWERWho has the primary responsibility in cross connection
control to protect the public water supply ( containment)
True - ANSWERA reduced pressure principal is a device that can be used to protect
against pollution, contamination, back pressure and back siphonage.
Isolation - ANSWERA method of back flow prevention at the point of use of the
customer's water supply
Barometric Loop - ANSWERA vertical loop of pipe, rising to a height sufficient to
prevent back-siphonage from occurring in the potable water supply pipe. (Approximately
35 feet, depending on the weight of the atmosphere.)
15 working days - ANSWERIn Orange Cunty, a certified tester is required to submit
their test report from with in how many days of testing a backflow device?
Health and Safety Code - ANSWERWho gives the authority to LOCAL HEALTH
agencies to administer the cross connection program and tester certification program
The flood level rim of the plumbing fixture - ANSWERAn Air Gap is measured from the
exit of the piping to what?
33.9 ft - ANSWERA perfect vacuum at sea level can pull a water column approximately
how many feet?
Isolation - ANSWERBack flow prevention at the point of use is define as?
Reduced Pressure Principle Backflow Assembly - ANSWERFor Containment protection
in a high hazard situation, the minimum backflow prevention device required is
Differential Pressure - ANSWERThe difference in pressure between two locations in a
piping system
Differenteial pressure gauge - ANSWERType of equipment used to test backflow
assemblies such as RP, DC, PVB, SVB
Containment - ANSWERMethod of backflow prevention at the point of connection
(meter) of the consumers water supply
Nevada Administrative Code (NAC) 445-A - ANSWERWhat is the Legal Document in
Nevada that governs Cross Connection control and backflow prevention
The Safe Drinking Water Act ;amended 1996 - ANSWERThe Federal Guidelines that
regulate the safety of drinking water are contained in.
