Level 1 · Entry sample questions
2 free sample questions on solids handling for the Level 1 · Entry wastewater treatment operator exam. Try each one, then open the answer to check your work.
What does a settleable-solids test determine?
Answer: D. Volume settling in a set time
A settleable-solids test uses an Imhoff cone to measure the volume of solids that settles from a wastewater sample during a specified time.
A sludge drying bed drains much more slowly than similar beds. Loading and weather are comparable, and water remains on the surface. What should the operator check first?
Answer: A. Check filtrate drainage
A restricted filtrate drainage path directly fits slow drainage and standing water. Adding sludge, changing polymer without evidence, or stopping ventilation does not correct the blocked drainage path.
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Operator Master has 2 Level 1 · Entry solids handling questions, free.
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