Grit Removal Practice Questions for Washington Level I

1. Question 1

   What does a **grit chamber** mainly remove from wastewater?

   1. Rags and plastics caught on screen bars
   2. Oil and grease floating on the surface
   3. Dissolved compounds carried in the flow
   4. Sand, gravel, and other heavy particles
   Show the answer

   Answer: D. Sand, gravel, and other heavy particles

   A grit chamber removes relatively heavy particles such as sand, gravel, cinders, and similar material while allowing lighter organic material to continue with the wastewater.

2. Question 2

   What is the main purpose of a grit chamber?

   1. To disinfect treated effluent
   2. To add oxygen to wastewater
   3. To remove sand and small stones
   4. To settle biological solids
   Show the answer

   Answer: C. To remove sand and small stones

   A grit chamber removes heavy inorganic material such as sand, grit, cinders, and small stones before it can wear or clog downstream equipment.

Operator Master has 2 Level I grit removal questions, free, with an explanation after every answer.

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