Grit Removal Practice Questions for Washington Level II

1. Question 1

   Washed grit contains more organic matter than normal. What should the operator review?

   1. Classifier washing and separation
   2. Grit discharge-chute alignment
   3. Classifier motor operating hours
   4. Grit-container level and pickup schedule
   Show the answer

   Answer: A. Classifier washing and separation

   Classifier washing helps separate lighter organic matter from the denser grit, so excess organics in the washed grit point back to that step.

2. Question 2

   A grit pump's discharge flow falls while suction vacuum and hopper level both rise. What should the operator inspect first?

   1. Discharge valve, check valve, and downstream classifier inlet.
   2. Pump speed, motor current, and operating timer.
   3. Hopper washwater, fluidization air, and level sensor.
   4. Suction line, inlet valve, and possible obstruction.
   Show the answer

   Answer: D. Suction line, inlet valve, and possible obstruction.

   Rising suction vacuum with falling discharge indicates restricted flow into the pump.

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

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