ADEQ Water Distribution 1&2 Exam Questions With
Correct Answers
All |water |pipes |shall |be |installed |at |least |10 |feet |horizontally |away |from |any |and |all |sewer |
lines |and |at |least |above |any |and |all |sewer |lines.
a. |12 |inches
b. |24 |inches
c. |36 |inches
d. |48 |inches |- |CORRECT |ANSWER✔✔-a. |12 |inches
Reverse |water |flow |in |a |distribution |system |caused |by |a |vacuum |in |a |water |supply |main |is |
called
a. |backsiphonage.
b. |indirect |cross |connection.
c. |surge |pressure.
d. |water |hammer. |- |CORRECT |ANSWER✔✔-a. |backsiphonage.
Why |must |the |relief |port |of |a |reduced |pressure |principle |backflow |prevention |device |never |be
|plugged |or |extended?
a. |so |the |device |will |function |as |designed
b. |the |plug |may |interfere |with |the |inspection |and |testing
c. |to |prevent |excessive |pressure |build |up |in |the |consumer's |home
d. |none |of |the |above |- |CORRECT |ANSWER✔✔-a. |so |the |device |will |function |as |designed
In |instances |where |non-potable |water |or |toxic |wastes |are |connected |directly |with |potable |
water |systems, |the |preferred |method |of |correction |for |such |a |cross |connection |is |by
,a. |installing |multiple |check |valves |on |the |safe |water |side.
b. |installing |physical |separation |(air |gap) |between |the |two |systems.
c. |maintaining |a |high |pressure |on |the |safe |water |system.
d. |providing |rapid |cutoff |valves |in |several |locations. |- |CORRECT |ANSWER✔✔-b. |installing |
physical |separation |(air |gap) |between |the |two |systems.
A |connection |between |a |safe |and |an |unsafe |water |supply |is |called |a
a. |cross |connection.
b. |intersection.
c. |loss |of |head.
d. |vacuum |breaker. |- |CORRECT |ANSWER✔✔-a. |cross |connection.
Why |is |it |important |to |thoroughly |flush |out |a |newly |installed |backflow-prevention |device |
before |testing?
a. |to |allow |water |to |flow |in |both |directions |through |the |unit
b. |to |equalize |the |pressures |throughout |the |system
c. |to |rid |the |unit |of |corrosive |chemicals
d. |to |rid |the |unit |of |foreign |objects |and |particles |- |CORRECT |ANSWER✔✔-d. |to |rid |the |unit |of |
foreign |objects |and |particles
Define |the |term |"Backsiphonage"
A. |A |form |of |backflow |due |to |an |increase |in |system |pressure |which |causes |a |subatmospheric |
pressure |to |exist |at |the |site |in |the |water |system
B. |A |form |of |backflow |due |to |a |reduction |in |system |pressure |which |causes |a |subatmospheric |
pressure |to |exist |at |the |site |in |the |water |system
C. |The |undesirable |reversal |of |flow |of |water, |gases |or |other |substances |into |the |distribution |
pipe |of |a |potable |supply |of |water |from |any |source
,D. |Any |elevation |of |pressure |in |a |downstream |piping |system |above |the |supply |pressure |at |the |
point |of |consideration |which |would |cause |a |reversal |of |the |normal |direction |of |flow |- |
CORRECT |ANSWER✔✔-B. |A |form |of |backflow |due |to |a |reduction |in |system |pressure |which |
causes |a |subatmospheric |pressure |to |exist |at |the |site |in |the |water |system
How |must |a |pressure |vacuum |breaker |backflow |device |be |installed?
A. |It |must |be |at |least |12 |inches |above |the |lowest |downstream |outlet
B. |It |must |be |at |least |12 |inches |above |the |highest |downstream |outlet
C. |It |must |be |6 |inches |above |the |downstream |outlet
D. |It |must |be |24 |inches |above |the |downstream |outlet |- |CORRECT |ANSWER✔✔-B. |It |must |be |at
|least |12 |inches |above |the |highest |downstream |outlet
Name |the |condition |in |which |the |pressure |in |a |distribution |system |is |less |than |the |
atmospheric |pressure.
A. |Backsiphonage
B. |Suction
C. |Vacuum
D. |Cross |connection |- |CORRECT |ANSWER✔✔-A. |Backsiphonage
On |what |item |might |you |find |a |vacuum |breaker?
A. |An |irrigation |system
B. |On |an |installation |for |a |backpressure |device
C. |On |a |standpipe
D. |On |a |fire |system |- |CORRECT |ANSWER✔✔-A. |An |irrigation |system
What |does |a |backsiphonage |condition |usually |cause?
A. |Reduced |pressure |or |negative |pressure |on |the |service |or |supply |side
B. |High |pressure |on |the |service |side
, C. |High |pressure |on |the |supply |side
D. |Backpressure |- |CORRECT |ANSWER✔✔-A. |Reduced |pressure |or |negative |pressure |on |the |
service |or |supply |side
What |does |a |double |check |valve |backflow |assembly |provide |effective |protection |from?
A. |All |backflow |situations
B. |Backsiphonageof |pollution
C. |Backpressure |of |pollution
D. |Both |backpressure |and |backsiphonage |of |pollution |- |CORRECT |ANSWER✔✔-D. |Both |
backpressure |and |backsiphonage |of |pollution
What |event |does |a |continuous |positive |pressure |in |a |distribution |system |prevent?
A. |A |backflow |condition
B. |Backsiphonage
C. |Objectionable |taste |and |odor
D. |Scaling |- |CORRECT |ANSWER✔✔-A. |A |backflow |condition
What |is |the |maximum |time |period |between |having |a |backflow |device |tested |by |a |certified |
backflow |tester?
A. |1 |month
B. |2 |years
C. |Does |not |require |a |test
D. |1 |year |- |CORRECT |ANSWER✔✔-D. |1 |year
What |may |result |if |atmospheric |pressure |creates |a |backsiphonage |condition?
A. |Reestablishing |pressure |will |eliminate |downstream |contaminants
B. |The |distribution |system |down |stream |of |the |cross |connection |will |be |contaminated
Correct Answers
All |water |pipes |shall |be |installed |at |least |10 |feet |horizontally |away |from |any |and |all |sewer |
lines |and |at |least |above |any |and |all |sewer |lines.
a. |12 |inches
b. |24 |inches
c. |36 |inches
d. |48 |inches |- |CORRECT |ANSWER✔✔-a. |12 |inches
Reverse |water |flow |in |a |distribution |system |caused |by |a |vacuum |in |a |water |supply |main |is |
called
a. |backsiphonage.
b. |indirect |cross |connection.
c. |surge |pressure.
d. |water |hammer. |- |CORRECT |ANSWER✔✔-a. |backsiphonage.
Why |must |the |relief |port |of |a |reduced |pressure |principle |backflow |prevention |device |never |be
|plugged |or |extended?
a. |so |the |device |will |function |as |designed
b. |the |plug |may |interfere |with |the |inspection |and |testing
c. |to |prevent |excessive |pressure |build |up |in |the |consumer's |home
d. |none |of |the |above |- |CORRECT |ANSWER✔✔-a. |so |the |device |will |function |as |designed
In |instances |where |non-potable |water |or |toxic |wastes |are |connected |directly |with |potable |
water |systems, |the |preferred |method |of |correction |for |such |a |cross |connection |is |by
,a. |installing |multiple |check |valves |on |the |safe |water |side.
b. |installing |physical |separation |(air |gap) |between |the |two |systems.
c. |maintaining |a |high |pressure |on |the |safe |water |system.
d. |providing |rapid |cutoff |valves |in |several |locations. |- |CORRECT |ANSWER✔✔-b. |installing |
physical |separation |(air |gap) |between |the |two |systems.
A |connection |between |a |safe |and |an |unsafe |water |supply |is |called |a
a. |cross |connection.
b. |intersection.
c. |loss |of |head.
d. |vacuum |breaker. |- |CORRECT |ANSWER✔✔-a. |cross |connection.
Why |is |it |important |to |thoroughly |flush |out |a |newly |installed |backflow-prevention |device |
before |testing?
a. |to |allow |water |to |flow |in |both |directions |through |the |unit
b. |to |equalize |the |pressures |throughout |the |system
c. |to |rid |the |unit |of |corrosive |chemicals
d. |to |rid |the |unit |of |foreign |objects |and |particles |- |CORRECT |ANSWER✔✔-d. |to |rid |the |unit |of |
foreign |objects |and |particles
Define |the |term |"Backsiphonage"
A. |A |form |of |backflow |due |to |an |increase |in |system |pressure |which |causes |a |subatmospheric |
pressure |to |exist |at |the |site |in |the |water |system
B. |A |form |of |backflow |due |to |a |reduction |in |system |pressure |which |causes |a |subatmospheric |
pressure |to |exist |at |the |site |in |the |water |system
C. |The |undesirable |reversal |of |flow |of |water, |gases |or |other |substances |into |the |distribution |
pipe |of |a |potable |supply |of |water |from |any |source
,D. |Any |elevation |of |pressure |in |a |downstream |piping |system |above |the |supply |pressure |at |the |
point |of |consideration |which |would |cause |a |reversal |of |the |normal |direction |of |flow |- |
CORRECT |ANSWER✔✔-B. |A |form |of |backflow |due |to |a |reduction |in |system |pressure |which |
causes |a |subatmospheric |pressure |to |exist |at |the |site |in |the |water |system
How |must |a |pressure |vacuum |breaker |backflow |device |be |installed?
A. |It |must |be |at |least |12 |inches |above |the |lowest |downstream |outlet
B. |It |must |be |at |least |12 |inches |above |the |highest |downstream |outlet
C. |It |must |be |6 |inches |above |the |downstream |outlet
D. |It |must |be |24 |inches |above |the |downstream |outlet |- |CORRECT |ANSWER✔✔-B. |It |must |be |at
|least |12 |inches |above |the |highest |downstream |outlet
Name |the |condition |in |which |the |pressure |in |a |distribution |system |is |less |than |the |
atmospheric |pressure.
A. |Backsiphonage
B. |Suction
C. |Vacuum
D. |Cross |connection |- |CORRECT |ANSWER✔✔-A. |Backsiphonage
On |what |item |might |you |find |a |vacuum |breaker?
A. |An |irrigation |system
B. |On |an |installation |for |a |backpressure |device
C. |On |a |standpipe
D. |On |a |fire |system |- |CORRECT |ANSWER✔✔-A. |An |irrigation |system
What |does |a |backsiphonage |condition |usually |cause?
A. |Reduced |pressure |or |negative |pressure |on |the |service |or |supply |side
B. |High |pressure |on |the |service |side
, C. |High |pressure |on |the |supply |side
D. |Backpressure |- |CORRECT |ANSWER✔✔-A. |Reduced |pressure |or |negative |pressure |on |the |
service |or |supply |side
What |does |a |double |check |valve |backflow |assembly |provide |effective |protection |from?
A. |All |backflow |situations
B. |Backsiphonageof |pollution
C. |Backpressure |of |pollution
D. |Both |backpressure |and |backsiphonage |of |pollution |- |CORRECT |ANSWER✔✔-D. |Both |
backpressure |and |backsiphonage |of |pollution
What |event |does |a |continuous |positive |pressure |in |a |distribution |system |prevent?
A. |A |backflow |condition
B. |Backsiphonage
C. |Objectionable |taste |and |odor
D. |Scaling |- |CORRECT |ANSWER✔✔-A. |A |backflow |condition
What |is |the |maximum |time |period |between |having |a |backflow |device |tested |by |a |certified |
backflow |tester?
A. |1 |month
B. |2 |years
C. |Does |not |require |a |test
D. |1 |year |- |CORRECT |ANSWER✔✔-D. |1 |year
What |may |result |if |atmospheric |pressure |creates |a |backsiphonage |condition?
A. |Reestablishing |pressure |will |eliminate |downstream |contaminants
B. |The |distribution |system |down |stream |of |the |cross |connection |will |be |contaminated
