BACKFLOW PREVENTION ASSEMBLY FINAL
PAPER 2026 QUESTIONS WITH FULL
SOLUTIONS GRADED A+
● BY-PASS LINE OF AN APPROVED BACKFLOW PREVENTION
ASSEMBLY . Answer: Must contain an approved assembly of equal size
● ATMOSPHERIC TYPE VACUUM BREAKER . Answer: Should not
be subjected to water pressure for more than twelve (12) hours
● PERFECT VACUUM AT SEA LEVEL . Answer: Can raise water in a
pipe approximately thirty-four (34) feet
● MOST DESIRABLE PLACE TO INSTALL A BACKFLOW
PREVENTION DEVICE . Answer: In an accessible location above
ground
● CONDITIONS RESULTING IN WATER CONTAMINATION
THROUGH A CROSS-CONNECTION . Answer: Include a vacuum
created by improper use of water hammer arresters
, ● WATER QUALITY AS A HEALTH HAZARD RESULTING FROM
BACKFLOW . Answer: Described as contamination
● VENTURI EFFECT . Answer: States that when water velocity within
the pipe increases, the pressure decreases
● DEGREE OF HAZARD . Answer: Based on the quality of a non-
potable water source
● BACKFLOW . Answer: May be described as either backpressure or
backsiphonage
● FEDERAL LAW PLACING RESPONSIBILITY FOR PROTECTION
OF PUBLIC WATER SUPPLY . Answer: Is the Safe Drinking Water Act
● PRESSURE TYPE VACUUM BREAKER ASSEMBLY . Answer:
Must be installed twelve (12) inches above all downstream piping
● DOUBLE CHECK BACKFLOW PREVENTION ASSEMBLY .
Answer: Will protect the potable water supply from non-health hazard -
backpressure and backsiphonage
● ATMOSPHERIC VACUUM BREAKER . Answer: Installed to protect
against backsiphonage - health hazard conditions only
PAPER 2026 QUESTIONS WITH FULL
SOLUTIONS GRADED A+
● BY-PASS LINE OF AN APPROVED BACKFLOW PREVENTION
ASSEMBLY . Answer: Must contain an approved assembly of equal size
● ATMOSPHERIC TYPE VACUUM BREAKER . Answer: Should not
be subjected to water pressure for more than twelve (12) hours
● PERFECT VACUUM AT SEA LEVEL . Answer: Can raise water in a
pipe approximately thirty-four (34) feet
● MOST DESIRABLE PLACE TO INSTALL A BACKFLOW
PREVENTION DEVICE . Answer: In an accessible location above
ground
● CONDITIONS RESULTING IN WATER CONTAMINATION
THROUGH A CROSS-CONNECTION . Answer: Include a vacuum
created by improper use of water hammer arresters
, ● WATER QUALITY AS A HEALTH HAZARD RESULTING FROM
BACKFLOW . Answer: Described as contamination
● VENTURI EFFECT . Answer: States that when water velocity within
the pipe increases, the pressure decreases
● DEGREE OF HAZARD . Answer: Based on the quality of a non-
potable water source
● BACKFLOW . Answer: May be described as either backpressure or
backsiphonage
● FEDERAL LAW PLACING RESPONSIBILITY FOR PROTECTION
OF PUBLIC WATER SUPPLY . Answer: Is the Safe Drinking Water Act
● PRESSURE TYPE VACUUM BREAKER ASSEMBLY . Answer:
Must be installed twelve (12) inches above all downstream piping
● DOUBLE CHECK BACKFLOW PREVENTION ASSEMBLY .
Answer: Will protect the potable water supply from non-health hazard -
backpressure and backsiphonage
● ATMOSPHERIC VACUUM BREAKER . Answer: Installed to protect
against backsiphonage - health hazard conditions only
