Water Distribution Grade 1 Certification ADEQ Practice Exam
Study online at https://quizlet.com/_78tfea
1. What is the general definition of an Atom
ion? An _________ with a positive or
negative charge
2. A continuous positive pressure in a Backflow Event
distribution system is essential for
preventing what event?
3. _____________ water pressure must Minimum
be maintained to ensure adequate
customer service during peak flow
periods. However, minimum posi-
tive pressure must be maintained in
mains to protect against backflow or
backsiphonage from cross-connec-
tions.
4. Name the most common CAUSE for Backflow
public water supply contamination.
_________________ or cross-connection
5. What does a backsiphonage condi- Reduced
tion usually cause? __________ pres-
sure or negative pressure on the ser-
vice or supply side.
6. What does a double check valve back- Pollution
flow assembly provide effective pro-
tection from? Both backpressure and
backsiphonage of ____________.
7. Cross-Connection
, Water Distribution Grade 1 Certification ADEQ Practice Exam
Study online at https://quizlet.com/_78tfea
What is equipment that utilizes water
for cooling, lubrication, washing or
as a solvent always susceptible to?
8. What is the difference between a Relief Valve
reduced pressure principle backflow
device and a double check backflow
device? The RP has a ______________.
9. What is the maximum time period 1
between having a backflow device
tested by a certified backflow tester?
______________ year.
10. What is the regulatory definition of a PWS
cross-connection in a water supply? A
physical connection between a pub-
lic water system and any source of
water or other substance that may
lead to contamination of the water
provided by the _____________ through
backflow.
11. What is the name of a type of valve Bypass Valve
that reduces the differential pressure
across a closed disk making the main
valve easier to open and close?
12. As soon as Cl2 gas enters the throat Coughing
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,
, Water Distribution Grade 1 Certification ADEQ Practice Exam
Study online at https://quizlet.com/_78tfea
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.
13. Chlorine gas causes suffocation, con- Lungs
striction of the chest, tightness
in the throat, and edema of the
______________.
14. _______________ available chlorine is Free
very effective in killing bacteria.
15. How should an operator store an Upright
empty chlorine cylinder? ____________,
tagged as empty.
16. If a chlorine leak occurs, where will Bottom
chlorine gas accumulate? Near the
____________ of the tank.
17. What effect does chlorine gas have Fatigue
on the sense of smell? It produces
olfactory _______________.
18. What is the primary safety concern Gas
when using chlorine gas as opposed
to calcium hypochlorite or sodium
hypochlorite? The potential for a
_____________ leak.
Study online at https://quizlet.com/_78tfea
1. What is the general definition of an Atom
ion? An _________ with a positive or
negative charge
2. A continuous positive pressure in a Backflow Event
distribution system is essential for
preventing what event?
3. _____________ water pressure must Minimum
be maintained to ensure adequate
customer service during peak flow
periods. However, minimum posi-
tive pressure must be maintained in
mains to protect against backflow or
backsiphonage from cross-connec-
tions.
4. Name the most common CAUSE for Backflow
public water supply contamination.
_________________ or cross-connection
5. What does a backsiphonage condi- Reduced
tion usually cause? __________ pres-
sure or negative pressure on the ser-
vice or supply side.
6. What does a double check valve back- Pollution
flow assembly provide effective pro-
tection from? Both backpressure and
backsiphonage of ____________.
7. Cross-Connection
, Water Distribution Grade 1 Certification ADEQ Practice Exam
Study online at https://quizlet.com/_78tfea
What is equipment that utilizes water
for cooling, lubrication, washing or
as a solvent always susceptible to?
8. What is the difference between a Relief Valve
reduced pressure principle backflow
device and a double check backflow
device? The RP has a ______________.
9. What is the maximum time period 1
between having a backflow device
tested by a certified backflow tester?
______________ year.
10. What is the regulatory definition of a PWS
cross-connection in a water supply? A
physical connection between a pub-
lic water system and any source of
water or other substance that may
lead to contamination of the water
provided by the _____________ through
backflow.
11. What is the name of a type of valve Bypass Valve
that reduces the differential pressure
across a closed disk making the main
valve easier to open and close?
12. As soon as Cl2 gas enters the throat Coughing
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,
, Water Distribution Grade 1 Certification ADEQ Practice Exam
Study online at https://quizlet.com/_78tfea
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.
13. Chlorine gas causes suffocation, con- Lungs
striction of the chest, tightness
in the throat, and edema of the
______________.
14. _______________ available chlorine is Free
very effective in killing bacteria.
15. How should an operator store an Upright
empty chlorine cylinder? ____________,
tagged as empty.
16. If a chlorine leak occurs, where will Bottom
chlorine gas accumulate? Near the
____________ of the tank.
17. What effect does chlorine gas have Fatigue
on the sense of smell? It produces
olfactory _______________.
18. What is the primary safety concern Gas
when using chlorine gas as opposed
to calcium hypochlorite or sodium
hypochlorite? The potential for a
_____________ leak.
