BACKFLOW CERTIFICATION TEST
CORRECT 100%
A cross connection is an actual or _________ connection between the potable water
system and a non potable system or source... - ANSWERPotential
The Two Types of Backflow are ____ and ____ - ANSWERBacksiphonage and
Backpressure
Backsiphonage is caused by negative or reduced ________ in the supply piping -
ANSWERPressure
Water traveling at high velocity past or through a small opening or restriction may cause
backsiphonage by what effect? - ANSWERVenturi (Aspiration)
The installation criteria for an approved Air Gap is __ times the supply diameter and
never less than___ - ANSWER2 times diameter never less than 1 inch
The two types of cross connections are Permanent/Direct or ___/___ -
ANSWERTemporary / Indirect
The two types of facility protection are Isolation and ____ - ANSWERContainment
Cross connection control is mandated by the____ - ANSWERState
Minimum value on first check valve of an RP - ANSWER5.0 PSID
The minimum value on the 2nd check valve of an RP is - ANSWER1.0
Minimum value on relief valve opening of RP is - ANSWER2.0 PSID
The minimum value on first check of a DCVA is - ANSWER1.0 PSID
Minimum value on Check Valve in a PVB - ANSWER1.0 PSID
The Minimum value on 2nd check of DCVA is - ANSWER1.0 PSID
The minimum opening point of air inlet of a PVB is - ANSWER1.0 PSID
After the repair of an assembly a field test is required for the _____ assembly -
ANSWEREntire
Continuous pressure is defined as pressure lasting for a period greater than ___ hours
within a 24 hour period - ANSWER12 hours
CORRECT 100%
A cross connection is an actual or _________ connection between the potable water
system and a non potable system or source... - ANSWERPotential
The Two Types of Backflow are ____ and ____ - ANSWERBacksiphonage and
Backpressure
Backsiphonage is caused by negative or reduced ________ in the supply piping -
ANSWERPressure
Water traveling at high velocity past or through a small opening or restriction may cause
backsiphonage by what effect? - ANSWERVenturi (Aspiration)
The installation criteria for an approved Air Gap is __ times the supply diameter and
never less than___ - ANSWER2 times diameter never less than 1 inch
The two types of cross connections are Permanent/Direct or ___/___ -
ANSWERTemporary / Indirect
The two types of facility protection are Isolation and ____ - ANSWERContainment
Cross connection control is mandated by the____ - ANSWERState
Minimum value on first check valve of an RP - ANSWER5.0 PSID
The minimum value on the 2nd check valve of an RP is - ANSWER1.0
Minimum value on relief valve opening of RP is - ANSWER2.0 PSID
The minimum value on first check of a DCVA is - ANSWER1.0 PSID
Minimum value on Check Valve in a PVB - ANSWER1.0 PSID
The Minimum value on 2nd check of DCVA is - ANSWER1.0 PSID
The minimum opening point of air inlet of a PVB is - ANSWER1.0 PSID
After the repair of an assembly a field test is required for the _____ assembly -
ANSWEREntire
Continuous pressure is defined as pressure lasting for a period greater than ___ hours
within a 24 hour period - ANSWER12 hours
