BACKFLOW EXAM 2026 COMPLETE STUDY
GUIDE WITH SOLUTIONS
◉ When velocity increases because of flowing through a constricted
area of piping. Answer: Venturi effect
◉ Backflow. Answer: The undesirable reversal of flow of water or
other substances into the potable water distribution supply
◉ A form of backflow due to a reduction in system pressure, which
causes a atmospheric pressure to exist in the water system. Answer:
Back siphonage
◉ Indicator that backflow has occurred. Answer: Odor, color, taste,
and physical harm from water contact
◉ Water meter running in reverse is a good indication of. Answer:
Backflow
◉ Backflow is the undesirable reversal of flow of water or other
substances into the potable water distribution supply. Answer: True
,◉ Any elevation of pressure in the downstream piping system by
pump, elevation of piping, steam pressure, air, pressure, etc. Above
the supply pressure at the point of consideration, which would cause
or tend to cause a reversal of the normal direction of flow.. Answer:
Back pressure
◉ Back siphonage may be caused by a booster pump true or false.
Answer: True
◉ Cross connections, or any actual or potential connections or
structural arrangements between a public or a consumer, portable
water system, and any other source through which it is possible to
introduce into any part of the substance other than the intended
portable water with which the system is supplied true or false.
Answer: True
◉ Devices of which backflow can occur are considered to be cross
connections. Answer: Bypass arrangements, jumper, connections,
removable, sections, swivel or change over devices.
◉ Cross connection, which is subject to back siphonage and back
pressure. Answer: Direct cross connection
◉ Cross connection, which is subject to back siphonage only.
Answer: Indirect cross connection
, ◉ Non-health hazard. Answer: Pollutant
◉ True or false. Non-health hazard will always cause illness or
death.. Answer: False
◉ True or false non-health hazard is aesthetically objectionable.
Answer: True
◉ Health hazard. Answer: Contaminate
◉ Potable water or Non-Potable water For human ingestion (Eg.
Drinking, teeth, brushing, food, preparation, dish, dishwashing.).
Answer: Potable water
◉ True or false degree of hazard is defined as a hazard derived from
the assessment of the materials, which may come in contact with the
distribution system through a cross connection. Answer: True
◉ True or false. A barometric loop height starts at the highest point
of water fixture use.. Answer: True
◉ Barometric loop protects against. Answer: Contentment,
pollutant, back siphonage
GUIDE WITH SOLUTIONS
◉ When velocity increases because of flowing through a constricted
area of piping. Answer: Venturi effect
◉ Backflow. Answer: The undesirable reversal of flow of water or
other substances into the potable water distribution supply
◉ A form of backflow due to a reduction in system pressure, which
causes a atmospheric pressure to exist in the water system. Answer:
Back siphonage
◉ Indicator that backflow has occurred. Answer: Odor, color, taste,
and physical harm from water contact
◉ Water meter running in reverse is a good indication of. Answer:
Backflow
◉ Backflow is the undesirable reversal of flow of water or other
substances into the potable water distribution supply. Answer: True
,◉ Any elevation of pressure in the downstream piping system by
pump, elevation of piping, steam pressure, air, pressure, etc. Above
the supply pressure at the point of consideration, which would cause
or tend to cause a reversal of the normal direction of flow.. Answer:
Back pressure
◉ Back siphonage may be caused by a booster pump true or false.
Answer: True
◉ Cross connections, or any actual or potential connections or
structural arrangements between a public or a consumer, portable
water system, and any other source through which it is possible to
introduce into any part of the substance other than the intended
portable water with which the system is supplied true or false.
Answer: True
◉ Devices of which backflow can occur are considered to be cross
connections. Answer: Bypass arrangements, jumper, connections,
removable, sections, swivel or change over devices.
◉ Cross connection, which is subject to back siphonage and back
pressure. Answer: Direct cross connection
◉ Cross connection, which is subject to back siphonage only.
Answer: Indirect cross connection
, ◉ Non-health hazard. Answer: Pollutant
◉ True or false. Non-health hazard will always cause illness or
death.. Answer: False
◉ True or false non-health hazard is aesthetically objectionable.
Answer: True
◉ Health hazard. Answer: Contaminate
◉ Potable water or Non-Potable water For human ingestion (Eg.
Drinking, teeth, brushing, food, preparation, dish, dishwashing.).
Answer: Potable water
◉ True or false degree of hazard is defined as a hazard derived from
the assessment of the materials, which may come in contact with the
distribution system through a cross connection. Answer: True
◉ True or false. A barometric loop height starts at the highest point
of water fixture use.. Answer: True
◉ Barometric loop protects against. Answer: Contentment,
pollutant, back siphonage
