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AWWA, ADEM Grade 4 Laboratory Analysis - Equipment and Maintenance The,100% Solved
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AWWA, ADEM Grade 4 Laboratory Analysis - Equipment and Maintenance The,100% Solved What test is done by a lab to determine data quality? spiked tests samples A beaker is used primarily for mixing chemicals What is the primary constituent of the pH-causing ions in a water sample if ...

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  • September 13, 2024
  • 6
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • how
  • awwa adem grade 4 laboratory analysis equipment
  • what test is done by a lab to determine data quali
  • what is the primary constituent of the ph causing
  • coliform bacteria will produce gas in broth a

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AWWA, ADEM Grade 4 Laboratory
Analysis - Equipment and Maintenance
The,100% Solved

What test is done by a lab to determine data quality? - answer spiked tests samples

A beaker is used primarily for - answer mixing chemicals

What is the primary constituent of the pH-causing ions in a water sample if the pH is
above 10? - answerOH-1

Coliform bacteria will produce gas in _____broth at ____within____ - answer lactose or
lauryl tryptase, 35.5 C, 24-48hrs

Number of samples under the Total coliform Rule that a water system must collect
depends on the - answer number of customers served

Phenolphthaelin acidity is the same as - answerCO2

How long can coliform samples be refrigerated before analysis - answer8 hours

Lab equipment resistant to heat, sudden temp change and chemical attack -
answerporcelain dishes

two metals that are typically toxic are - answerchromium and cadmium

two metals that are not normally toxic - answermanganese and iron

Total hardness and the total alkalinity of water are used to calculate the -
answercarbonate and noncarbonate hardness

what group of organisms are measured that if present might indicate the presence of
pathogens - answercoliform bacteria

alkalinity is defined as - answermeasurement of the waters capacity to neutralize acid

what should be done with the lid while collecting a bacteriological sample - answerhold
cap, threads down while collecting the sample with the other hand

, the zeta potential is defined as a force the will keep ____ apart and keep them
suspended - answervery small colloidal particles

SUVA is an indicator of what disinfection by product precursor substances -
answerhumic content

sampling of organic compounds must be done with ultraclean glass vials that lids made
of - answerpolytetrafluorothylene

the best place to collect samples at water treatment plants would be - answerfrom main
stream flow

what are the chemical formula precipitates when chlorine is added to water containing
iron and manganese - answerFe(OH)3 and MnO2

The saturation point of a chemical in water varies with - answerPh, total dissolved solids
(TDS) and temp

why is it important to label all contents of all containers that carry materials or solutions -
answerprevent mixing incompatible materials, prevent unwanted reactions affecting
health and safety and prevent losing sample

the amount of oxygen that can remain dissolved in water is a function of the waters
____ and the ____the water, the____the possible concentration of dissolved oxygen -
answertemp, colder, higher

the precise location of sampling points depends on the ____distribution system -
answerconfiguration

which is the most inexpensive pathogenic test - answercoliforms

in order to test a lab and analyst, the oversight agency gives the lab and analyst a
_____ test - answerset of blinds to

a virus would be considered a - answercolloidal solid and biological solid

customer complaints of taste and odor are often caused by - answerwater softener or
water heater

what are the additives in detergent that tie up hardness ions - answersequestering
agents

what rule requires the measurement of conductivity - answerLead and Copper rule

any good____ household detergent is adequate for cleaning labware, and it is preferred
that the detergent is a____ - answernonphosphate, liquid

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