Water Treatment Operator Drinking Class 1
| | | | | |
exam with verified answers
| | |
If |a |customer |complains |about |the |drinking |water |characteristics, |the |operator |should |record |the |
complaint |and... |- |CORRECT |ANSWER✔✔-Investigate |immediately
What |term |is |used |when |a |water |utility |divides |its |total |operating |expenses |into |a |total |revenue? |- |
CORRECT |ANSWER✔✔-Operating |ratio
How |often |should |data, |such |as |flow |rate, |amount |of |water |treated, |dosage |of |chemical, |and |reservoir |
levels |be |recorded? |- |CORRECT |ANSWER✔✔-Daily
Under |the |requirements |of |the |Safe |Water |Drinking |Act, |it |is |the |duty |of |the |water |purveyor |to |deliver |
potable |water |of |proper |quantity |only |as |far |as |the... |- |CORRECT |ANSWER✔✔-Consumer's |tap |
inside |the |home
According |to |the |Safe |Drinking |Water |Act, |the |basic |definition |of |a |public |water |supply |system |is |any |
water |system |that |supplies |water |for |human |consumption |that |serves.... |- |CORRECT |ANSWER✔✔-15
|service |connections |or |over |25 |persons |for |over |60 |days |a |year
What |agent |is |responsible |for |reporting |lab |results |to |the |regulatory |agency? |- |CORRECT |
ANSWER✔✔-Water |system |owner
What |causes |water |to |moves |through |pores |in |the |soil |& |rocks? |- |CORRECT |ANSWER✔✔-Gravity
Disease |producing |bacteria |are |called |? |- |CORRECT |ANSWER✔✔-Pathogens
What |are |the |two |main |causes |of |hardness |in |water? |- |CORRECT |ANSWER✔✔-Calcium |& |
Magnesium
What |device |measures |the |flow |rate |of |gases? |- |CORRECT |ANSWER✔✔-Rotameter
Excessive |internal |pressure, |which |may |be |several |times |the |normal |operating |pressure |and |can |
seriously |damage |hydropneumatic |tanks, |valves, |and |piping |network? |- |CORRECT |ANSWER✔✔-
Water |Hammer
Most |pumps |must |be |primed |before |startup |in |order |to... |- |CORRECT |ANSWER✔✔-Start |the |flow |of |
water
What |is |the |purpose |of |a |check |valve? |- |CORRECT |ANSWER✔✔-Act |as |an |automatic |shutoff |valve |
when |the |pump |stops
Nursylab.com
, Which |form |of |hypochlorite |is |the |most |dangerous |to |handle? |- |CORRECT |ANSWER✔✔-Calcium
What |type |of |fire |extinguisher |should |be |used |for |fires |with |live |electricity |present? |- |CORRECT |
ANSWER✔✔-Class |C
Documents |that |provide |a |profile |of |hazardous |material? |- |CORRECT |ANSWER✔✔-MSDS
What |is |the |purpose |of |a |pump |guard? |- |CORRECT |ANSWER✔✔-Protects |operators |from |rotating |
parts
The |major |source |of |error |when |obtaining |water |quality |info |is |improper... |- |CORRECT |
ANSWER✔✔-Sampling
A |composite |sample |should |never |be |used |when |sampling |for... |- |CORRECT |ANSWER✔✔-Bacteria
How |many |coliform |samples |are |required |per |month |for |a |water |system |serving |a |population |between |
25 |& |100? |- |CORRECT |ANSWER✔✔-1
Water |laboratory |test |calculations |and |results |use |which |system? |- |CORRECT |ANSWER✔✔-Metric
Factors |of |what |number |are |used |in |the |metric |system? |- |CORRECT |ANSWER✔✔-10
What |is |the |most |common |method |used |in |labs |for |total |coliform |& |E. |coli? |- |CORRECT |
ANSWER✔✔-Colilert
Test |method |that |best |determines |chemical |feed/dosage |rates? |- |CORRECT |ANSWER✔✔-Jar |test
Chlorine |demand |is |satisfied |at |the |point |when... |- |CORRECT |ANSWER✔✔-The |reaction |of |chlorine |
with |organic |& |inorganic |materials |stops
Chlorine |will |destroy |bacteria |most |rapidly |at |what |pH? |- |CORRECT |ANSWER✔✔-7.5
What |is |the |process |of |adding |chlorine |to |water |until |the |chlorine |demand |had |been |satisfied? |- |
CORRECT |ANSWER✔✔-Breakpoint |Chlorination
Which |of |the |following |pH |ranges |would |deposit |a |thin |film |of |calcium |carbonate |on |the |inside |surface |
of |a |pipe? |- |CORRECT |ANSWER✔✔-8.0-9.0
Most |important |reason |for |maintaining |continuous |pressure |throughout |the |distribution |system |is? |- |
CORRECT |ANSWER✔✔-Prevent |contamination |from |backflow
A |weir |should |be |used |to |measure |water |in |which |locations? |- |CORRECT |ANSWER✔✔-Open |
channels
Rotten |egg |small |& |taste |problems? |- |CORRECT |ANSWER✔✔-Hydrogen |sulfide
Nursylab.com
| | | | | |
exam with verified answers
| | |
If |a |customer |complains |about |the |drinking |water |characteristics, |the |operator |should |record |the |
complaint |and... |- |CORRECT |ANSWER✔✔-Investigate |immediately
What |term |is |used |when |a |water |utility |divides |its |total |operating |expenses |into |a |total |revenue? |- |
CORRECT |ANSWER✔✔-Operating |ratio
How |often |should |data, |such |as |flow |rate, |amount |of |water |treated, |dosage |of |chemical, |and |reservoir |
levels |be |recorded? |- |CORRECT |ANSWER✔✔-Daily
Under |the |requirements |of |the |Safe |Water |Drinking |Act, |it |is |the |duty |of |the |water |purveyor |to |deliver |
potable |water |of |proper |quantity |only |as |far |as |the... |- |CORRECT |ANSWER✔✔-Consumer's |tap |
inside |the |home
According |to |the |Safe |Drinking |Water |Act, |the |basic |definition |of |a |public |water |supply |system |is |any |
water |system |that |supplies |water |for |human |consumption |that |serves.... |- |CORRECT |ANSWER✔✔-15
|service |connections |or |over |25 |persons |for |over |60 |days |a |year
What |agent |is |responsible |for |reporting |lab |results |to |the |regulatory |agency? |- |CORRECT |
ANSWER✔✔-Water |system |owner
What |causes |water |to |moves |through |pores |in |the |soil |& |rocks? |- |CORRECT |ANSWER✔✔-Gravity
Disease |producing |bacteria |are |called |? |- |CORRECT |ANSWER✔✔-Pathogens
What |are |the |two |main |causes |of |hardness |in |water? |- |CORRECT |ANSWER✔✔-Calcium |& |
Magnesium
What |device |measures |the |flow |rate |of |gases? |- |CORRECT |ANSWER✔✔-Rotameter
Excessive |internal |pressure, |which |may |be |several |times |the |normal |operating |pressure |and |can |
seriously |damage |hydropneumatic |tanks, |valves, |and |piping |network? |- |CORRECT |ANSWER✔✔-
Water |Hammer
Most |pumps |must |be |primed |before |startup |in |order |to... |- |CORRECT |ANSWER✔✔-Start |the |flow |of |
water
What |is |the |purpose |of |a |check |valve? |- |CORRECT |ANSWER✔✔-Act |as |an |automatic |shutoff |valve |
when |the |pump |stops
Nursylab.com
, Which |form |of |hypochlorite |is |the |most |dangerous |to |handle? |- |CORRECT |ANSWER✔✔-Calcium
What |type |of |fire |extinguisher |should |be |used |for |fires |with |live |electricity |present? |- |CORRECT |
ANSWER✔✔-Class |C
Documents |that |provide |a |profile |of |hazardous |material? |- |CORRECT |ANSWER✔✔-MSDS
What |is |the |purpose |of |a |pump |guard? |- |CORRECT |ANSWER✔✔-Protects |operators |from |rotating |
parts
The |major |source |of |error |when |obtaining |water |quality |info |is |improper... |- |CORRECT |
ANSWER✔✔-Sampling
A |composite |sample |should |never |be |used |when |sampling |for... |- |CORRECT |ANSWER✔✔-Bacteria
How |many |coliform |samples |are |required |per |month |for |a |water |system |serving |a |population |between |
25 |& |100? |- |CORRECT |ANSWER✔✔-1
Water |laboratory |test |calculations |and |results |use |which |system? |- |CORRECT |ANSWER✔✔-Metric
Factors |of |what |number |are |used |in |the |metric |system? |- |CORRECT |ANSWER✔✔-10
What |is |the |most |common |method |used |in |labs |for |total |coliform |& |E. |coli? |- |CORRECT |
ANSWER✔✔-Colilert
Test |method |that |best |determines |chemical |feed/dosage |rates? |- |CORRECT |ANSWER✔✔-Jar |test
Chlorine |demand |is |satisfied |at |the |point |when... |- |CORRECT |ANSWER✔✔-The |reaction |of |chlorine |
with |organic |& |inorganic |materials |stops
Chlorine |will |destroy |bacteria |most |rapidly |at |what |pH? |- |CORRECT |ANSWER✔✔-7.5
What |is |the |process |of |adding |chlorine |to |water |until |the |chlorine |demand |had |been |satisfied? |- |
CORRECT |ANSWER✔✔-Breakpoint |Chlorination
Which |of |the |following |pH |ranges |would |deposit |a |thin |film |of |calcium |carbonate |on |the |inside |surface |
of |a |pipe? |- |CORRECT |ANSWER✔✔-8.0-9.0
Most |important |reason |for |maintaining |continuous |pressure |throughout |the |distribution |system |is? |- |
CORRECT |ANSWER✔✔-Prevent |contamination |from |backflow
A |weir |should |be |used |to |measure |water |in |which |locations? |- |CORRECT |ANSWER✔✔-Open |
channels
Rotten |egg |small |& |taste |problems? |- |CORRECT |ANSWER✔✔-Hydrogen |sulfide
Nursylab.com
