CWEA Lab Analyst Grade 1 Exam with accurate detailed || || || || || || || || ||
answers
Celcius - ✔✔(F-32)5/9 || ||
HPC media water bath - ✔✔45`C, 3hr
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Precision - ✔✔a measure of how close a series of measurements are to one another
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Accuracy - ✔✔how close a measurement is to the true value
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Electrical Fire - ✔✔unplug & sodium bicarbonate
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analytical balance - ✔✔a device for determining mass that gives highly accurate measurements
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top loading balance - ✔✔used to determine mass; not as precise as an analytical balance
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triple beam balance - ✔✔instrument used to measure mass, less sensitive than top loading
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Coliform - ✔✔Gram-negative rod-shaped bacteria normally present in the intestine; includes E.
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coli and other species.
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temp and pH - ✔✔temp rises, pH drops. Must measure pH within 15 min of collecting sample
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Always add ___ to ___ - ✔✔acid to water
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spectrometer - ✔✔a device that spreads light into its different colors || || || || || || || || || ||
answers
Celcius - ✔✔(F-32)5/9 || ||
HPC media water bath - ✔✔45`C, 3hr
|| || || || || ||
Precision - ✔✔a measure of how close a series of measurements are to one another
|| || || || || || || || || || || || || ||
Accuracy - ✔✔how close a measurement is to the true value
|| || || || || || || || || ||
Electrical Fire - ✔✔unplug & sodium bicarbonate
|| || || || || ||
analytical balance - ✔✔a device for determining mass that gives highly accurate measurements
|| || || || || || || || || || || ||
top loading balance - ✔✔used to determine mass; not as precise as an analytical balance
|| || || || || || || || || || || || || ||
triple beam balance - ✔✔instrument used to measure mass, less sensitive than top loading
|| || || || || || || || || || || || ||
Coliform - ✔✔Gram-negative rod-shaped bacteria normally present in the intestine; includes E.
|| || || || || || || || || || || ||
coli and other species.
|| || ||
temp and pH - ✔✔temp rises, pH drops. Must measure pH within 15 min of collecting sample
|| || || || || || || || || || || || || || || ||
Always add ___ to ___ - ✔✔acid to water
|| || || || || || || ||
spectrometer - ✔✔a device that spreads light into its different colors || || || || || || || || || ||
