BACKFLOW PREVENTION ASSEMBLY FINAL PAPER 2026 QUESTIONS WITH FULL SOLUTIONS GRADED A+

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