Water Treatment 1- ADEQ Study Guide Exam Questions With Correct Answers

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)