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WASTEWATER CLASS B OPERATOR EXAM 2024 WITH 100% CORRECT ANSWERS
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WASTEWATER CLASS B OPERATOR EXAM 2024 WITH 100% CORRECT ANSWERS 
 
 
Bio-monitoring involves the use of aquatic life to test the toxicity of a wastewater treatment plant effluent. - correct answer TRUE 
 
The definition of an oxygen-deficient atmosphere is one that contains less than, what percentage of oxygen? - correct answer 19.5 
 
1.) What is the function of a grit auger? - correct answer To Separate Organic from Inorganics 
 
2.) Running a 30 min settling test is the best indication of wha...