CWEA Lab Analyst Grade 1 Exam with 100% Correct Answers 2025/2026

CWEA Lab Analyst Grade 1 Exam with 100% Correct Answers 2025/2026 Celsius - answer-(F-32)5/9 HPC media water bath - answer-45`C, 3hr Precision - answer-a measure of how close a series of measurements are to one another Accuracy - answer-how close a measurement is to the true value Electrical Fire - answer-unplug & sodium bicarbonate analytical balance - answer-a device for determining mass that gives highly accurate measurements top loading balance - answer-used to determine mass; not as precise as an analytical balance triple beam balance - answer-instrument used to measure mass, less sensitive than top loading Coliform - answer-Gram-negative rod-shaped bacteria normally present in the intestine; includes E. coli and other species. temp and pH - answer-temp rises, pH drops. Must measure pH within 15 min of collecting sample Always add ___ to ___ - answer-acid to waterspectrometer - answer-a device that spreads light into its different colors rounding off - answer-.5=keep # even .4 stays the same .6 round up sig fig rules - answer-Non-zero digits are always significant. Any zeros between two significant digits are significant. A final zero or trailing zeros in the decimal portion ONLY are significant. adding sig figs - answer-smallest number of decimals Alkalinity hold time - answer-14 days COD hold time - answer-28 days BOD hold time - answer-48 hours