BACKFLOW CERTIFICATION TEST
QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS 100%
CORRECT RATED A+
A cross connection is an actual or _________ connection between the potable
water system and a non-potable system or source...
Answer: Potential.
The two types of backflow are ____ and ____
Answer: Backsiphonage and Backpressure.
Backsiphonage is caused by negative or reduced ________ in the supply
piping
Answer: Pressure.
Water traveling at high velocity past or through a small opening or restriction
may cause backsiphonage by what effect?
Answer: Venturi (Aspiration).
The installation criteria for an approved air gap is __ times the supply
diameter and never less than___
Answer: 2 times the diameter, never less than 1 inch.
The two types of cross connections are Permanent/Direct or /
Answer: Temporary / Indirect.
The two types of facility protection are Isolation and ____
Answer: Containment.
, Cross connection control is mandated by the____
Answer: State.
Minimum value on first check valve of an RP -ANSWER✔✔5.0 PSID
The minimum value on the 2nd check valve of an RP is -ANSWER✔✔1.0
Minimum value on relief valve opening of RP is -ANSWER✔✔2.0 PSID
The minimum value on first check of a DCVA is -ANSWER✔✔1.0 PSID
Minimum value on Check Valve in a PVB -ANSWER✔✔1.0 PSID
The Minimum value on 2nd check of DCVA is -ANSWER✔✔1.0 PSID
The minimum opening point of air inlet of a PVB is -ANSWER✔✔1.0 PSID
After the repair of an assembly a field test is required for the _____ assembly -
ANSWER✔✔Entire
Continuous pressure is defined as pressure lasting for a period greater than ___
hours within a 24 hour period -ANSWER✔✔12 hours
A Backflow Preventer which creates a closed plumbing system may require the
installation of a -ANSWER✔✔Thermal Expansion Tank
QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS 100%
CORRECT RATED A+
A cross connection is an actual or _________ connection between the potable
water system and a non-potable system or source...
Answer: Potential.
The two types of backflow are ____ and ____
Answer: Backsiphonage and Backpressure.
Backsiphonage is caused by negative or reduced ________ in the supply
piping
Answer: Pressure.
Water traveling at high velocity past or through a small opening or restriction
may cause backsiphonage by what effect?
Answer: Venturi (Aspiration).
The installation criteria for an approved air gap is __ times the supply
diameter and never less than___
Answer: 2 times the diameter, never less than 1 inch.
The two types of cross connections are Permanent/Direct or /
Answer: Temporary / Indirect.
The two types of facility protection are Isolation and ____
Answer: Containment.
, Cross connection control is mandated by the____
Answer: State.
Minimum value on first check valve of an RP -ANSWER✔✔5.0 PSID
The minimum value on the 2nd check valve of an RP is -ANSWER✔✔1.0
Minimum value on relief valve opening of RP is -ANSWER✔✔2.0 PSID
The minimum value on first check of a DCVA is -ANSWER✔✔1.0 PSID
Minimum value on Check Valve in a PVB -ANSWER✔✔1.0 PSID
The Minimum value on 2nd check of DCVA is -ANSWER✔✔1.0 PSID
The minimum opening point of air inlet of a PVB is -ANSWER✔✔1.0 PSID
After the repair of an assembly a field test is required for the _____ assembly -
ANSWER✔✔Entire
Continuous pressure is defined as pressure lasting for a period greater than ___
hours within a 24 hour period -ANSWER✔✔12 hours
A Backflow Preventer which creates a closed plumbing system may require the
installation of a -ANSWER✔✔Thermal Expansion Tank
