ABC Wastewater Verified Multiple Choice and Conceptual Actual Frequently Tested
Exam Questions With Reviewed 100% Correct Detailed Answers
Guaranteed Pass!!Current Update!!
You have 0.01 mg of Manganese in 200 mL. How much do
0.05 mg
you have in 1L?
gram equivalent weights of reagent chemical per liter of
In chemistry, what does the word Normality mean?
solution
The conductivity of de-ionized water should have how
less than 0.2
many microhmos/cm?
Results of bacti test are expressed as what? coliforms per 100 mL
How to report TNTC on fecal coliform analysis? 1600 colonies/100 mL
Why should a chlorine residual be maintained in a water
to protect the bacti quality of the water
system?
To assure greatest safety, how should all chemicals be
according to manufacturers recommendations
stored?
the action of certain solutions in opposing a change of
In the lab, what does the term butter refer to?
composition, especially of hydrogen ion concentration
Class "C" fire extinguishers are for what type of fire? electrical
Coliform are indicators for? presence of microorganisms
How do you prepare samples for metals analysis? digestion
how does activated carbon work? adsorption
type 1 reagent water is distilled then to make it better it is passed through a mixed bed then through a 0.2 micron-
...? meter filter
What type of fire extinguisher is used for grease fires? Class B
What is the purpose of the jar test? to calculate dosage of polymer
What reference document can you find OSHA regulations
29 CFR 1910
in?
What is the titrant for amperometic titration of chlorine? phenylarsine oxide (POA)
1/9
, ABC Wastewater Verified Multiple Choice and Conceptual Actual Frequently Tested
Exam Questions With Reviewed 100% Correct Detailed Answers
Guaranteed Pass!!Current Update!!
What information should always be included on a sample
location, collection time, date, initials
label?
According to the SDWA, to test TDS, filter a well-mixed
sample, evaporate and dry to a constant weight, at what 180 degrees celsius for 1 hour
temp & for how long?
Coliforms are indicators for what? fecal microorganisms
What type of graph paper is used for ammonia/fluoride
semi-logarithmic
control curve?
Where should you look to find approved methods (be-
40 CRF 136
sides standard methods)?
What type of control curve should be used with graph
logarithmic
paper?
E. coli represents the presence of what? fecal
What information should be on a sample? date, time, initials
Total alkalinity endpoint? 4.5 pH
What is the concentration of the titrant used for alkalinity? 0.02 N
Primary drinking water standards are found where? 40 CFR 141
Alkalinity titrations using phenolphthalein has a pH end-
8.3
point of what?
Where should a sample be placed after a known volume
analyzed immediately (in-situ)
of the sample is filtered for TDS?
What temperature is volumetric glassware generally cali-
20 degrees Celsius
brated?
What is the hold time for COD? 28 days
If an analyst breaks a control point what should they do? reanalyze
28 days
2/9
Exam Questions With Reviewed 100% Correct Detailed Answers
Guaranteed Pass!!Current Update!!
You have 0.01 mg of Manganese in 200 mL. How much do
0.05 mg
you have in 1L?
gram equivalent weights of reagent chemical per liter of
In chemistry, what does the word Normality mean?
solution
The conductivity of de-ionized water should have how
less than 0.2
many microhmos/cm?
Results of bacti test are expressed as what? coliforms per 100 mL
How to report TNTC on fecal coliform analysis? 1600 colonies/100 mL
Why should a chlorine residual be maintained in a water
to protect the bacti quality of the water
system?
To assure greatest safety, how should all chemicals be
according to manufacturers recommendations
stored?
the action of certain solutions in opposing a change of
In the lab, what does the term butter refer to?
composition, especially of hydrogen ion concentration
Class "C" fire extinguishers are for what type of fire? electrical
Coliform are indicators for? presence of microorganisms
How do you prepare samples for metals analysis? digestion
how does activated carbon work? adsorption
type 1 reagent water is distilled then to make it better it is passed through a mixed bed then through a 0.2 micron-
...? meter filter
What type of fire extinguisher is used for grease fires? Class B
What is the purpose of the jar test? to calculate dosage of polymer
What reference document can you find OSHA regulations
29 CFR 1910
in?
What is the titrant for amperometic titration of chlorine? phenylarsine oxide (POA)
1/9
, ABC Wastewater Verified Multiple Choice and Conceptual Actual Frequently Tested
Exam Questions With Reviewed 100% Correct Detailed Answers
Guaranteed Pass!!Current Update!!
What information should always be included on a sample
location, collection time, date, initials
label?
According to the SDWA, to test TDS, filter a well-mixed
sample, evaporate and dry to a constant weight, at what 180 degrees celsius for 1 hour
temp & for how long?
Coliforms are indicators for what? fecal microorganisms
What type of graph paper is used for ammonia/fluoride
semi-logarithmic
control curve?
Where should you look to find approved methods (be-
40 CRF 136
sides standard methods)?
What type of control curve should be used with graph
logarithmic
paper?
E. coli represents the presence of what? fecal
What information should be on a sample? date, time, initials
Total alkalinity endpoint? 4.5 pH
What is the concentration of the titrant used for alkalinity? 0.02 N
Primary drinking water standards are found where? 40 CFR 141
Alkalinity titrations using phenolphthalein has a pH end-
8.3
point of what?
Where should a sample be placed after a known volume
analyzed immediately (in-situ)
of the sample is filtered for TDS?
What temperature is volumetric glassware generally cali-
20 degrees Celsius
brated?
What is the hold time for COD? 28 days
If an analyst breaks a control point what should they do? reanalyze
28 days
2/9
