Wastewater Lab Analyst Exam with Questions and Smart Answers – 100% Solved
1000 mg is equal to how many grams? - ✔✔✔-1 gram (g)
A desiccator is used for what? - ✔✔✔-to maintain a certain dryness (dry environment)
A single sample taken without considering time or flow is? - ✔✔✔-a grab
A volumetric pipet is usually used with? - ✔✔✔-a rubber bulb
According to the SDWA, to test TDS, filter a well-mixed sample, evaporate and dry to a constant
weight, at what temp & for how long? - ✔✔✔-180 degrees celsius for 1 hour
After a sample has been collected and preserved, what is the most common hold time? - ✔✔✔-
28 days
Alkalinity titrations using phenolphthalein has a pH endpoint of what? - ✔✔✔-8.3
ammonia interference - ✔✔✔-amines
Ammonia is released at what pH? - ✔✔✔-> 11
an organism that can cause a disease is a what? - ✔✔✔-pathogen
Bottles used for bacti sample collection should be ...? - ✔✔✔-sterilized
Cadmium Reduction converts what to what? - ✔✔✔-converts nitrates to nitrites
cations are attracted to ...? - ✔✔✔-cathodes
, Wastewater Lab Analyst Exam with Questions and Smart Answers – 100% Solved
Class "C" fire extinguishers are for what type of fire? - ✔✔✔-electrical
Coliform are indicators for? - ✔✔✔-presence of microorganisms
Coliforms are indicators for what? - ✔✔✔-fecal microorganisms
Conductivity also measures what? - ✔✔✔-total dissolved solids
digestion is the phosphorous test that produces what? - ✔✔✔-orthophosphates
E. coli represents the presence of what? - ✔✔✔-fecal
End point for phenolphthalein alkalinity? - ✔✔✔-8.3
Fecal coliform membrane filter plates are incubated in a water bath at what temperature? -
✔✔✔-44.5 +/- 0.2 degrees Celsius
Fume hoods should be used when what concentration of volatiles are present? - ✔✔✔->150
ppm
Glassware most appropriate for preparation of a stock standard? - ✔✔✔-volumetric flask
hardness values are expressed as equivalent to? - ✔✔✔-calcium carbonate
how do you check a manhole for leaks? - ✔✔✔-check for gas coming out of edges before
opening
1000 mg is equal to how many grams? - ✔✔✔-1 gram (g)
A desiccator is used for what? - ✔✔✔-to maintain a certain dryness (dry environment)
A single sample taken without considering time or flow is? - ✔✔✔-a grab
A volumetric pipet is usually used with? - ✔✔✔-a rubber bulb
According to the SDWA, to test TDS, filter a well-mixed sample, evaporate and dry to a constant
weight, at what temp & for how long? - ✔✔✔-180 degrees celsius for 1 hour
After a sample has been collected and preserved, what is the most common hold time? - ✔✔✔-
28 days
Alkalinity titrations using phenolphthalein has a pH endpoint of what? - ✔✔✔-8.3
ammonia interference - ✔✔✔-amines
Ammonia is released at what pH? - ✔✔✔-> 11
an organism that can cause a disease is a what? - ✔✔✔-pathogen
Bottles used for bacti sample collection should be ...? - ✔✔✔-sterilized
Cadmium Reduction converts what to what? - ✔✔✔-converts nitrates to nitrites
cations are attracted to ...? - ✔✔✔-cathodes
, Wastewater Lab Analyst Exam with Questions and Smart Answers – 100% Solved
Class "C" fire extinguishers are for what type of fire? - ✔✔✔-electrical
Coliform are indicators for? - ✔✔✔-presence of microorganisms
Coliforms are indicators for what? - ✔✔✔-fecal microorganisms
Conductivity also measures what? - ✔✔✔-total dissolved solids
digestion is the phosphorous test that produces what? - ✔✔✔-orthophosphates
E. coli represents the presence of what? - ✔✔✔-fecal
End point for phenolphthalein alkalinity? - ✔✔✔-8.3
Fecal coliform membrane filter plates are incubated in a water bath at what temperature? -
✔✔✔-44.5 +/- 0.2 degrees Celsius
Fume hoods should be used when what concentration of volatiles are present? - ✔✔✔->150
ppm
Glassware most appropriate for preparation of a stock standard? - ✔✔✔-volumetric flask
hardness values are expressed as equivalent to? - ✔✔✔-calcium carbonate
how do you check a manhole for leaks? - ✔✔✔-check for gas coming out of edges before
opening
