Process Flow Diagrams (PFDs) in Plant Drawings
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Questions and Answers

Which of the following is shown in Figure 3(a) of the process flow schematic diagram?

  • Heating ventilation and air conditioning (HVAC) system (correct)
  • Boiler feed pump
  • Steam system
  • Axial fan

    • What is the purpose of glycol in the HVAC system shown in Figure 3(a)?

  • To regulate the motorized dampers
  • To supply outdoor air
  • To control the temperature of the chilled water (correct)
  • To provide steam to the humidifier

    • What is the function of the Steam System Process Flow Diagram shown in Figure 3(b)?

  • To demonstrate the typical process flow schematic diagrams
  • To explain the purpose of glycol in the HVAC system
  • To show the main process flows of a heating ventilation and air conditioning (HVAC) system
  • To illustrate the process flows of a steam system (correct)

    • Which of the following best describes a process flow diagram (PFD)?

    <p>A diagram showing the inter-relationships between equipment in a plant</p> Signup and view all the answers

    Which of the following is NOT typically shown on a process flow diagram (PFD)?

    <p>Line sizes</p> Signup and view all the answers

    What is the main purpose of process flow diagrams (PFDs)?

    <p>To provide valuable information for plant operating and engineering staff</p> Signup and view all the answers

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