BACKFLOW PREVENTION ASSEMBLY
TESTER EXAM TERMINAL CERTIFICATION
EVALUATION COMPLETE QUESTIONS
WITH FULL SOLUTION ALREADY PASSED
⩥ Pollutant.
Answer: Non-health hazard (does not cause illness or death)
⩥ Contaminant.
Answer: Health hazard (can cause illness or death)
⩥ 27 3/4.
Answer: 2.31 feet of head
⩥ Backflow.
Answer: The undesirable reversal of flow of water or other substances
into the potable water distribution supply.
⩥ Backpressure and backsiphonage.
Answer: Backflow occurs because of what two things
⩥ Backpressure.
,Answer: Pressure in the downstream piping becomes higher than supply
(upstream) pressure driving water the wrong way.
⩥ Backsiphonage.
Answer: Sub atmospheric pressure
⩥ Cross connection.
Answer: An actual or potential connection between a potable water
supply and any non potable substance or source
⩥ Direct and indirect.
Answer: 2 types of cross connections
⩥ Direct cross connection.
Answer: Subject to backpressure or backsiphonage
⩥ Indirect cross connection.
Answer: Subject to backsiphonage only
⩥ Aspirator/Venturi effect.
Answer: Condition where undersized water pipes carry water under a
high velocity past or through a small opening and will cause a
backsiphonage effect.
, ⩥ Non health hazard and health hazard.
Answer: 2 degrees of hazard
⩥ Pollutant.
Answer: Non health hazard, low hazard, and will not cause illness or
death.
⩥ Contaminant.
Answer: Health hazard, high hazard, and causes illness or death.
⩥ Five means of preventing backflow.
Answer: Air gap seperation, reduced pressure principle Assembly,
double check valve Assembly, pressure vacuum breaker, atmospheric
vacuum breaker.
⩥ Airgap.
Answer: 2x Supply line diameter but not less than 1".
⩥ Approved airgap seperation.
Answer: Backsiphonage, backpressure, containment, and pollutant
⩥ Reduced pressure principle assembly (RP).
TESTER EXAM TERMINAL CERTIFICATION
EVALUATION COMPLETE QUESTIONS
WITH FULL SOLUTION ALREADY PASSED
⩥ Pollutant.
Answer: Non-health hazard (does not cause illness or death)
⩥ Contaminant.
Answer: Health hazard (can cause illness or death)
⩥ 27 3/4.
Answer: 2.31 feet of head
⩥ Backflow.
Answer: The undesirable reversal of flow of water or other substances
into the potable water distribution supply.
⩥ Backpressure and backsiphonage.
Answer: Backflow occurs because of what two things
⩥ Backpressure.
,Answer: Pressure in the downstream piping becomes higher than supply
(upstream) pressure driving water the wrong way.
⩥ Backsiphonage.
Answer: Sub atmospheric pressure
⩥ Cross connection.
Answer: An actual or potential connection between a potable water
supply and any non potable substance or source
⩥ Direct and indirect.
Answer: 2 types of cross connections
⩥ Direct cross connection.
Answer: Subject to backpressure or backsiphonage
⩥ Indirect cross connection.
Answer: Subject to backsiphonage only
⩥ Aspirator/Venturi effect.
Answer: Condition where undersized water pipes carry water under a
high velocity past or through a small opening and will cause a
backsiphonage effect.
, ⩥ Non health hazard and health hazard.
Answer: 2 degrees of hazard
⩥ Pollutant.
Answer: Non health hazard, low hazard, and will not cause illness or
death.
⩥ Contaminant.
Answer: Health hazard, high hazard, and causes illness or death.
⩥ Five means of preventing backflow.
Answer: Air gap seperation, reduced pressure principle Assembly,
double check valve Assembly, pressure vacuum breaker, atmospheric
vacuum breaker.
⩥ Airgap.
Answer: 2x Supply line diameter but not less than 1".
⩥ Approved airgap seperation.
Answer: Backsiphonage, backpressure, containment, and pollutant
⩥ Reduced pressure principle assembly (RP).
