ADEQ Water Distribution Grades
1 & 2 Practice 2026 Exam
Questions and Answers | Graded
A+ | Guaranteed Pass!!
What is the general definition of an ion? An _________ with a positive or
negative charge - 🧠 ANSWER ✔✔Atom
A continuous positive pressure in a distribution system is essential for
preventing what event? - 🧠 ANSWER ✔✔Backflow Event
_____________ water pressure must be maintained to ensure adequate
customer service during peak flow periods. However, minimum positive
,pressure must be maintained in mains to protect against backflow or
backsiphonage from cross-connections. - 🧠 ANSWER ✔✔Minimum
Name the most common CAUSE for public water supply contamination.
_________________ or cross-connection - 🧠 ANSWER ✔✔Backflow
What does a backsiphonage condition usually cause? __________
pressure or negative pressure on the service or supply side. - 🧠 ANSWER
✔✔Reduced
What does a double check valve backflow assembly provide effective
protection from? Both backpressure and backsiphonage of ____________.
- 🧠 ANSWER ✔✔Pollution
What is equipment that utilizes water for cooling, lubrication, washing or as
a solvent always susceptible to? - 🧠 ANSWER ✔✔Cross-Connection
What is the difference between a reduced pressure principle backflow
device and a double check backflow device? The RP has a
______________. - 🧠 ANSWER ✔✔Relief Valve
What is the maximum time period between having a backflow device tested
by a certified backflow tester? ______________ year. - 🧠 ANSWER ✔✔1
, What is the regulatory definition of a cross-connection in a water supply? A
physical connection between a public water system and any source of
water or other substance that may lead to contamination of the water
provided by the _____________ through backflow. - 🧠 ANSWER ✔✔PWS
What is the name of a type of valve that reduces the differential pressure
across a closed disk making the main valve easier to open and close? - 🧠
ANSWER ✔✔Bypass Valve
As soon as Cl2 gas enters the throat area, a victim will sense a sudden
stricture in this area-Nature's way of signaling to prevent passage of the
gas to the lungs. At this point, the victim must attempt to do two things: get
out of the area of the leak, proceeding upwind, and to take only very short
breaths through the mouth. Normal breathing will cause __________,
which must be prevented if possible. - 🧠 ANSWER ✔✔Coughing
Chlorine gas causes suffocation, constriction of the chest, tightness in the
throat, and edema of the ______________. - 🧠 ANSWER ✔✔Lungs
_______________ available chlorine is very effective in killing bacteria. - 🧠
ANSWER ✔✔Free
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
3
1 & 2 Practice 2026 Exam
Questions and Answers | Graded
A+ | Guaranteed Pass!!
What is the general definition of an ion? An _________ with a positive or
negative charge - 🧠 ANSWER ✔✔Atom
A continuous positive pressure in a distribution system is essential for
preventing what event? - 🧠 ANSWER ✔✔Backflow Event
_____________ water pressure must be maintained to ensure adequate
customer service during peak flow periods. However, minimum positive
,pressure must be maintained in mains to protect against backflow or
backsiphonage from cross-connections. - 🧠 ANSWER ✔✔Minimum
Name the most common CAUSE for public water supply contamination.
_________________ or cross-connection - 🧠 ANSWER ✔✔Backflow
What does a backsiphonage condition usually cause? __________
pressure or negative pressure on the service or supply side. - 🧠 ANSWER
✔✔Reduced
What does a double check valve backflow assembly provide effective
protection from? Both backpressure and backsiphonage of ____________.
- 🧠 ANSWER ✔✔Pollution
What is equipment that utilizes water for cooling, lubrication, washing or as
a solvent always susceptible to? - 🧠 ANSWER ✔✔Cross-Connection
What is the difference between a reduced pressure principle backflow
device and a double check backflow device? The RP has a
______________. - 🧠 ANSWER ✔✔Relief Valve
What is the maximum time period between having a backflow device tested
by a certified backflow tester? ______________ year. - 🧠 ANSWER ✔✔1
, What is the regulatory definition of a cross-connection in a water supply? A
physical connection between a public water system and any source of
water or other substance that may lead to contamination of the water
provided by the _____________ through backflow. - 🧠 ANSWER ✔✔PWS
What is the name of a type of valve that reduces the differential pressure
across a closed disk making the main valve easier to open and close? - 🧠
ANSWER ✔✔Bypass Valve
As soon as Cl2 gas enters the throat area, a victim will sense a sudden
stricture in this area-Nature's way of signaling to prevent passage of the
gas to the lungs. At this point, the victim must attempt to do two things: get
out of the area of the leak, proceeding upwind, and to take only very short
breaths through the mouth. Normal breathing will cause __________,
which must be prevented if possible. - 🧠 ANSWER ✔✔Coughing
Chlorine gas causes suffocation, constriction of the chest, tightness in the
throat, and edema of the ______________. - 🧠 ANSWER ✔✔Lungs
_______________ available chlorine is very effective in killing bacteria. - 🧠
ANSWER ✔✔Free
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
3
