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Backflow Prevention Assembly Tester exam A mixture of air and gas is considered to become hazardous when it exceeds ___ of the lower explosive limit - ANSW..10% A perfect vacuum a see level will raise the water level in a pipe a maximum of - ANSW..33.9 fe$17.99
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Backflow Prevention Assembly Tester exam A mixture of air and gas is considered to become hazardous when it exceeds ___ of the lower explosive limit - ANSW..10% A perfect vacuum a see level will raise the water level in a pipe a maximum of - ANSW..33.9 fe
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Course
AHA ACLS 2023
Institution
AHA ACLS 2023
Backflow Prevention Assembly
Tester exam
A mixture of air and gas is considered to become hazardous when it exceeds ___ of the
lower explosive limit - ANSW..10%
A perfect vacuum a see level will raise the water level in a pipe a maximum of -
ANSW..33.9 feet
A mixture of air and gas is considered to become hazardous when it exceeds ___ of the
lower explosive limit - ✔✔ANSW✔✔..10%
A perfect vacuum a see level will raise the water level in a pipe a maximum of -
✔✔ANSW✔✔..33.9 feet
Air Inlet on a PVB must open at or above - ✔✔ANSW✔✔..1 psid
An oxygen-deficient atmosphere contains less than _____ percent oxygen. -
✔✔ANSW✔✔..19.5%
An RP is not required at the service connection of - ✔✔ANSW✔✔..A single family
dwelling
An unprotected bypass on an RP - ✔✔ANSW✔✔..is not allowed
Auxiliary Supply (Reclaimed Water) - ✔✔ANSW✔✔..Any water source or system, other
than the potable water supply, that may be available in the building or premise.
Backpressure & Backsiphonage - ✔✔ANSW✔✔..Backflow occurs because of what two
things
Backsiphonage - ✔✔ANSW✔✔..A backflow condition in which the pressure in the
distribution system is less than atmospheric pressure (subatmospheric)
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