Water Treatment 1- ADEQ Study Guide Exam
Questions With Correct Answers
What |are |the |3 |responsibilities |of |any |public |water |supplier? |- |CORRECT |ANSWER✔✔-1. |
Provide |water |to |meet |all |public |demand
2. |Provide |palatable |and |potable |water
3. |Deliver |water |when |needed
What |are |3 |examples |of |public |water |usage? |- |CORRECT |ANSWER✔✔-1. |Domestic
2. |Industrial
3. |Agriculture
What |is |GWUDI |water |system? |- |CORRECT |ANSWER✔✔-Ground |Water |Under |Direct |Influence |
of |surface |water
What |is |the |most |common |type |of |ion |exchange |water |treatment |process? |- |CORRECT |
ANSWER✔✔-Water |softeners
What |chemical |can |cause |red |water |problems |- |CORRECT |ANSWER✔✔-Iron
Which |of |the |following |is |not |likely |to |present |a |water |quality |issue |in |a |groundwater |system?
A. |Hardness
B. |Turbidity
C. |Iron
D. |Bacteria |- |CORRECT |ANSWER✔✔-B. |Turbidity
,True |or |False- |Peak |daily |consumption |may |be |2.5 |times |the |daily |average |- |CORRECT |
ANSWER✔✔-True
Which |one |of |the |following |pH |values |is |acidic?
A. |10.9
B. |8.2
C. |7.0
D. |4.5 |- |CORRECT |ANSWER✔✔-D. |4.5
What |is |an |MCL |- |CORRECT |ANSWER✔✔-Maximum |Contaminant |Level
Why |is |turbidity |a |Primary |Contaminant |- |CORRECT |ANSWER✔✔-Shields |during |infection
What |is |a |nephelometer? |- |CORRECT |ANSWER✔✔-Turbidimeter
What |is |a |repeat |sample? |- |CORRECT |ANSWER✔✔-Sample |collected |after |routine |positives |
occurs
What |notification |is |required |for |a |Tier |1 |violation? |- |CORRECT |ANSWER✔✔-BWO- |Boil |Water |
Order
What |are |the |action |levels |for |lead |and |copper? |- |CORRECT |ANSWER✔✔-1.3 |copper |mg/L
15 |ppb |lead
How |often |must |nitrate |samples |be |submitted? |- |CORRECT |ANSWER✔✔-Yearly
What |are |the |D-DPB |regulated |contaminants |besides |TTHMs? |- |CORRECT |ANSWER✔✔-HAA5
,A |public |water |system |serves |a |population |greater |than |or |equal |to:
A. |25
B. |50
C. |100 |- |CORRECT |ANSWER✔✔-A. |25
What |type |of |contaminant |is |iron?
A. |Primary |Inorganic
B. |Primary |Organic
C. |Secondary |- |CORRECT |ANSWER✔✔-C. |Secondary
The |MCL |for |Total |Trihalomethanes |is:
A. |0.010 |mg/L
B. |0.080 |mg/L
C. |0.200 |mg/L |- |CORRECT |ANSWER✔✔-B. |0.080 |mg/L
The |SDWA |compliance |cycle |for |the |standardized |monitoring |rule |consists |of |3:
A. |Years
B. |Compliance |periods
C. |Quarters
D. |Months |- |CORRECT |ANSWER✔✔-B. |Compliance |Periods
A |3-log |removal |is |a |__________ |% |reduction.
A. |90%
B. |99%
C. |99.9% |- |CORRECT |ANSWER✔✔-C. |99.9%
, Why |is |sodium |thiosulphate |used |in |a |microbiological |sample? |- |CORRECT |ANSWER✔✔-To |
dechlorinate
Microbiological |samples |must |be |tested |within |__________ |hours.
A. |12
B. |24
C. |30
D. |36 |- |CORRECT |ANSWER✔✔-B. |24
If |a |systems |take |one |microbiological |sample |a |month, |how |many |repeat |samples |must |be |
taken |when |positive |result |are |reported?
A. |2
B. |3
C. |4
D. |5 |- |CORRECT |ANSWER✔✔-C. |4
How |many |milliliters |of |sample |are |required |for |testing?
A. |50
B. |75
C. |100
D. |125 |- |CORRECT |ANSWER✔✔-C. |100
Which |samples |cannot |have |air |bubbles |in |them? |- |CORRECT |ANSWER✔✔-40 |mls |viles |
(organic |samples)
Questions With Correct Answers
What |are |the |3 |responsibilities |of |any |public |water |supplier? |- |CORRECT |ANSWER✔✔-1. |
Provide |water |to |meet |all |public |demand
2. |Provide |palatable |and |potable |water
3. |Deliver |water |when |needed
What |are |3 |examples |of |public |water |usage? |- |CORRECT |ANSWER✔✔-1. |Domestic
2. |Industrial
3. |Agriculture
What |is |GWUDI |water |system? |- |CORRECT |ANSWER✔✔-Ground |Water |Under |Direct |Influence |
of |surface |water
What |is |the |most |common |type |of |ion |exchange |water |treatment |process? |- |CORRECT |
ANSWER✔✔-Water |softeners
What |chemical |can |cause |red |water |problems |- |CORRECT |ANSWER✔✔-Iron
Which |of |the |following |is |not |likely |to |present |a |water |quality |issue |in |a |groundwater |system?
A. |Hardness
B. |Turbidity
C. |Iron
D. |Bacteria |- |CORRECT |ANSWER✔✔-B. |Turbidity
,True |or |False- |Peak |daily |consumption |may |be |2.5 |times |the |daily |average |- |CORRECT |
ANSWER✔✔-True
Which |one |of |the |following |pH |values |is |acidic?
A. |10.9
B. |8.2
C. |7.0
D. |4.5 |- |CORRECT |ANSWER✔✔-D. |4.5
What |is |an |MCL |- |CORRECT |ANSWER✔✔-Maximum |Contaminant |Level
Why |is |turbidity |a |Primary |Contaminant |- |CORRECT |ANSWER✔✔-Shields |during |infection
What |is |a |nephelometer? |- |CORRECT |ANSWER✔✔-Turbidimeter
What |is |a |repeat |sample? |- |CORRECT |ANSWER✔✔-Sample |collected |after |routine |positives |
occurs
What |notification |is |required |for |a |Tier |1 |violation? |- |CORRECT |ANSWER✔✔-BWO- |Boil |Water |
Order
What |are |the |action |levels |for |lead |and |copper? |- |CORRECT |ANSWER✔✔-1.3 |copper |mg/L
15 |ppb |lead
How |often |must |nitrate |samples |be |submitted? |- |CORRECT |ANSWER✔✔-Yearly
What |are |the |D-DPB |regulated |contaminants |besides |TTHMs? |- |CORRECT |ANSWER✔✔-HAA5
,A |public |water |system |serves |a |population |greater |than |or |equal |to:
A. |25
B. |50
C. |100 |- |CORRECT |ANSWER✔✔-A. |25
What |type |of |contaminant |is |iron?
A. |Primary |Inorganic
B. |Primary |Organic
C. |Secondary |- |CORRECT |ANSWER✔✔-C. |Secondary
The |MCL |for |Total |Trihalomethanes |is:
A. |0.010 |mg/L
B. |0.080 |mg/L
C. |0.200 |mg/L |- |CORRECT |ANSWER✔✔-B. |0.080 |mg/L
The |SDWA |compliance |cycle |for |the |standardized |monitoring |rule |consists |of |3:
A. |Years
B. |Compliance |periods
C. |Quarters
D. |Months |- |CORRECT |ANSWER✔✔-B. |Compliance |Periods
A |3-log |removal |is |a |__________ |% |reduction.
A. |90%
B. |99%
C. |99.9% |- |CORRECT |ANSWER✔✔-C. |99.9%
, Why |is |sodium |thiosulphate |used |in |a |microbiological |sample? |- |CORRECT |ANSWER✔✔-To |
dechlorinate
Microbiological |samples |must |be |tested |within |__________ |hours.
A. |12
B. |24
C. |30
D. |36 |- |CORRECT |ANSWER✔✔-B. |24
If |a |systems |take |one |microbiological |sample |a |month, |how |many |repeat |samples |must |be |
taken |when |positive |result |are |reported?
A. |2
B. |3
C. |4
D. |5 |- |CORRECT |ANSWER✔✔-C. |4
How |many |milliliters |of |sample |are |required |for |testing?
A. |50
B. |75
C. |100
D. |125 |- |CORRECT |ANSWER✔✔-C. |100
Which |samples |cannot |have |air |bubbles |in |them? |- |CORRECT |ANSWER✔✔-40 |mls |viles |
(organic |samples)
