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Examen

Wastewater Class 2 Multiple Choice Questions and Answers | Latest Version | 2025/2026 | Correct & Verified
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38

septiembre 2025

2025/2026

A+
Wastewater Class 2 Multiple Choice Questions and Answers | Latest Version | 2025/2026 | Correct & Verified What is the main purpose of grit removal in wastewater treatment? A. To remove organic matter B. To prevent equipment wear C. To disinfect pathogens D. To reduce BOD Which step in wastewater treatment removes settleable solids? A. Aeration tank B. Primary clarifier C. Chlorination basin D. Trickling filter What is the main role of aeration in activated sludge? A. Neutr...
SterlingScores
$12.46 Más información

Examen

Wastewater Class 2 multiple choice Exam Questions with 100% correct answers
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13

febrero 2024

2023/2024

A+
The threahold limit value concentration for chlorine vapour is: a. 0.1 ppm b. 0.3 ppm c. 0.5 ppm d. 1.0 ppm - correct answer c. 0.5ppm When working in confined spaces where flammable gasesmay be present, use only tools made of: a. stainless steel b. lead c. iron d. a non-sparking alloy - correct answer d. a non-sparking alloy In addition to the worker entering a confined space, what is thw minimum number of people required to be present during a confined space entry? a. 1 b. 2 c...
GRADEUNITS
$15.99 Más información