WasteWater Operator Certification Study
Guide Grade 1 Exam Questions With
Correct Answers
WasteWater |Sources |& |Characteristics:
What |is |the |most |common |reason |for |a |wastewater |to |contain |intermittent |large |amounts |of |
sand, |gravel, |and |grit? |- |CORRECT |ANSWER✔✔-storm |events
WasteWater |Sources |& |Characteristics:
Combined |wastewater |is |defined |as |- |CORRECT |ANSWER✔✔-sanitary |wastewater |and |
stormwater |runoff
WasteWater |Sources |& |Characteristics:
In |general, |the |solids |content |in |wastewater |is |about |- |CORRECT |ANSWER✔✔-0.1%
WasteWater |Sources |& |Characteristics:
In |general, |what |is |the |% |of |suspended |solids |in |the |total |amount |of |solids |- |CORRECT |
ANSWER✔✔-30%
WasteWater |Sources |& |Characteristics:
,Generally, |the |% |of |dissolved |solids |in |the |amount |of |total |solids |is |about |- |CORRECT |
ANSWER✔✔-70%
WasteWater |Sources |& |Characteristics:
Which |type |of |organisms |would |most |probably |be |associated |with |poor |treatment |or |young |
biomass |- |CORRECT |ANSWER✔✔-amoebas
WasteWater |Sources |& |Characteristics:
Which |type |of |organisms |would |most |probably |be |associated |with |very |clear |plant |effluent. |
low |BOD |and |low |amounts |of |suspended |solids |- |CORRECT |ANSWER✔✔-stalked |cilates
Basic |WasteWater |Treatment:
Aerobic |bacteria |will |reproduce |and |live |in |an |environment |that |contains |only |- |CORRECT |
ANSWER✔✔-oxygen
Basic |WasteWater |Treatment:
Anaerobic |bacteria |will |reproduce |and |live |only |in |an |environment |that |completely |lacks |- |
CORRECT |ANSWER✔✔-free |or |dissolved |oxygen
Basic |WasteWater |Treatment:
The |biochemical |oxygen |demand |(BOD) |test |usually |has |a |specific |time |of |- |CORRECT |
ANSWER✔✔-5 |days
, Basic |WasteWater |Treatment:
An |Imhoff |cone |measures |- |CORRECT |ANSWER✔✔-volume |of |settleable |solids
Basic |WasteWater |Treatment:
Septic |conditions |are |caused |by |- |CORRECT |ANSWER✔✔-anaerobic |bacteria
Basic |WasteWater |Treatment:
Scum |is |usually |removed |in |the |_____treatment |stage |- |CORRECT |ANSWER✔✔-primary
Basic |WasteWater |Treatment:
When |domestic |wastewater |enters |natural |waters, |what |species |deplete |most |of |the |oxygen |- |
CORRECT |ANSWER✔✔-aerobic |bacteria
Basic |WasteWater |Treatment:
Once |the |oxygen |is |depleted |in |a |natural |body |of |water, |which |organisms |take |over? |- |
CORRECT |ANSWER✔✔-anaerobic
Basic |WasteWater |Treatment:
The |major |gas |produces |by |anaerobic |decomposition |is |- |CORRECT |ANSWER✔✔-methane
Guide Grade 1 Exam Questions With
Correct Answers
WasteWater |Sources |& |Characteristics:
What |is |the |most |common |reason |for |a |wastewater |to |contain |intermittent |large |amounts |of |
sand, |gravel, |and |grit? |- |CORRECT |ANSWER✔✔-storm |events
WasteWater |Sources |& |Characteristics:
Combined |wastewater |is |defined |as |- |CORRECT |ANSWER✔✔-sanitary |wastewater |and |
stormwater |runoff
WasteWater |Sources |& |Characteristics:
In |general, |the |solids |content |in |wastewater |is |about |- |CORRECT |ANSWER✔✔-0.1%
WasteWater |Sources |& |Characteristics:
In |general, |what |is |the |% |of |suspended |solids |in |the |total |amount |of |solids |- |CORRECT |
ANSWER✔✔-30%
WasteWater |Sources |& |Characteristics:
,Generally, |the |% |of |dissolved |solids |in |the |amount |of |total |solids |is |about |- |CORRECT |
ANSWER✔✔-70%
WasteWater |Sources |& |Characteristics:
Which |type |of |organisms |would |most |probably |be |associated |with |poor |treatment |or |young |
biomass |- |CORRECT |ANSWER✔✔-amoebas
WasteWater |Sources |& |Characteristics:
Which |type |of |organisms |would |most |probably |be |associated |with |very |clear |plant |effluent. |
low |BOD |and |low |amounts |of |suspended |solids |- |CORRECT |ANSWER✔✔-stalked |cilates
Basic |WasteWater |Treatment:
Aerobic |bacteria |will |reproduce |and |live |in |an |environment |that |contains |only |- |CORRECT |
ANSWER✔✔-oxygen
Basic |WasteWater |Treatment:
Anaerobic |bacteria |will |reproduce |and |live |only |in |an |environment |that |completely |lacks |- |
CORRECT |ANSWER✔✔-free |or |dissolved |oxygen
Basic |WasteWater |Treatment:
The |biochemical |oxygen |demand |(BOD) |test |usually |has |a |specific |time |of |- |CORRECT |
ANSWER✔✔-5 |days
, Basic |WasteWater |Treatment:
An |Imhoff |cone |measures |- |CORRECT |ANSWER✔✔-volume |of |settleable |solids
Basic |WasteWater |Treatment:
Septic |conditions |are |caused |by |- |CORRECT |ANSWER✔✔-anaerobic |bacteria
Basic |WasteWater |Treatment:
Scum |is |usually |removed |in |the |_____treatment |stage |- |CORRECT |ANSWER✔✔-primary
Basic |WasteWater |Treatment:
When |domestic |wastewater |enters |natural |waters, |what |species |deplete |most |of |the |oxygen |- |
CORRECT |ANSWER✔✔-aerobic |bacteria
Basic |WasteWater |Treatment:
Once |the |oxygen |is |depleted |in |a |natural |body |of |water, |which |organisms |take |over? |- |
CORRECT |ANSWER✔✔-anaerobic
Basic |WasteWater |Treatment:
The |major |gas |produces |by |anaerobic |decomposition |is |- |CORRECT |ANSWER✔✔-methane
