Wastewater Treatment Unit Controls and Operation Quiz
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Questions and Answers

Which interlock shuts down pump P5-1002A/B?

  • LALL-0115
  • LALL-0103 (correct)
  • LAHH-0115
  • LALL-0104

Which interlock controls the level of the oil in the Slop Oil Separator?

  • LC-0116
  • FALL-0108
  • LT-0113A (correct)
  • AAHH-0107

Which valve is controlled by the LC-0141 in the Equalization Tank?

  • LV-0141B
  • HC-0141A
  • HC-0141B
  • LV-0141A (correct)

What interlock starts the Skimmed Oil Pumps P5-1012A/B?

<p>LT-0124 (B)</p> Signup and view all the answers

Which control loop is responsible for maintaining the level of the chloride scrubbing wastewater in the Chloride Scrubber Wastewater Pit?

<p>LT-0132 (D)</p> Signup and view all the answers

What happens when the level of the chloride scrubbing wastewater in the Chloride Scrubber Wastewater Pit is high?

<p>Pump P5-1001A or B starts (B)</p> Signup and view all the answers

How is the flowrate of the pumped liquid from T5-1001 maintained above the pump minimum flowrate?

<p>FV-0122A opens to return excess flow back to the Chloride Scrubber Wastewater Pit (B)</p> Signup and view all the answers

Which pump(s) operate as lead and lag to protect the equipment against overfilling?

<p>P5-1013A/B (C)</p> Signup and view all the answers

What is the method used for the backwashing operation of the Wastewater Filters Package?

<p>Water backwashing with auxiliary air scour (A)</p> Signup and view all the answers

What is the purpose of the operator console in the DCS system?

<p>To meet operator needs in terms of monitoring, controlling, and recording plant operation (C)</p> Signup and view all the answers

Which control panel(s) is equipped with a VDU (Video Display Unit) for accessing the control system?

<p>Arsenic Removal Package, Flotation Treatment Package, and Wastewater Filters Package (C)</p> Signup and view all the answers

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