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Questions and Answers
Which diagram includes more detail, the P&ID or the PFD?
Which diagram includes more detail, the P&ID or the PFD?
What does the P&ID show the details of?
What does the P&ID show the details of?
What is the purpose of P&IDs in the operation, repair, and modification of the plant?
What is the purpose of P&IDs in the operation, repair, and modification of the plant?
Which instrument is used to sense the tank level in the control loop described in Figure 7?
Which instrument is used to sense the tank level in the control loop described in Figure 7?
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What type of control system is indicated by the control lines in Figure 7?
What type of control system is indicated by the control lines in Figure 7?
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What instrument records the tank level in the control loop described in Figure 7?
What instrument records the tank level in the control loop described in Figure 7?
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What type of signal does the level controller send to the diaphragm-operated level control valve in Figure 7?
What type of signal does the level controller send to the diaphragm-operated level control valve in Figure 7?
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Which of the following is NOT typically shown on a P&ID diagram?
Which of the following is NOT typically shown on a P&ID diagram?
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What is the purpose of a P&ID diagram during the design and pre-construction phases?
What is the purpose of a P&ID diagram during the design and pre-construction phases?
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What do P&IDs provide to field construction and inspection personnel during construction?
What do P&IDs provide to field construction and inspection personnel during construction?
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What do P&IDs serve as for plant operating and engineering staff after construction?
What do P&IDs serve as for plant operating and engineering staff after construction?
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Which instrument is used to sense the tank level in the control loop described in Figure 7?
Which instrument is used to sense the tank level in the control loop described in Figure 7?
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What type of control system is indicated by the control lines in Figure 7?
What type of control system is indicated by the control lines in Figure 7?
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What instrument records the tank level in the control loop described in Figure 7?
What instrument records the tank level in the control loop described in Figure 7?
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What type of signal does the level controller send to the diaphragm-operated level control valve in Figure 7?
What type of signal does the level controller send to the diaphragm-operated level control valve in Figure 7?
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Which diagram provides more detail, the P&ID or the PFD?
Which diagram provides more detail, the P&ID or the PFD?
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What information does the P&ID show about equipment orientation?
What information does the P&ID show about equipment orientation?
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What is the purpose of P&IDs in the operation, repair, and modification of the plant?
What is the purpose of P&IDs in the operation, repair, and modification of the plant?
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Which of the following is typically shown on a P&ID diagram?
Which of the following is typically shown on a P&ID diagram?
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What is the purpose of a P&ID diagram during the design and pre-construction phases?
What is the purpose of a P&ID diagram during the design and pre-construction phases?
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What do P&IDs provide to field construction and inspection personnel during construction?
What do P&IDs provide to field construction and inspection personnel during construction?
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What do P&IDs serve as for plant operating and engineering staff after construction?
What do P&IDs serve as for plant operating and engineering staff after construction?
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Which diagram provides more detail, the P&ID or the PFD?
Which diagram provides more detail, the P&ID or the PFD?
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What information does the P&ID show about equipment orientation?
What information does the P&ID show about equipment orientation?
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What do P&IDs serve as for plant operating and engineering staff after construction?
What do P&IDs serve as for plant operating and engineering staff after construction?
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Which instrument in the control loop described in Figure 7 records the tank level?
Which instrument in the control loop described in Figure 7 records the tank level?
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What type of signal does the level controller send to the diaphragm-operated level control valve in Figure 7?
What type of signal does the level controller send to the diaphragm-operated level control valve in Figure 7?
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Which diagram includes more detail, the P&ID or the PFD?
Which diagram includes more detail, the P&ID or the PFD?
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What type of control system is indicated by the control lines in Figure 7?
What type of control system is indicated by the control lines in Figure 7?
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Which of the following is NOT typically shown on a P&ID diagram?
Which of the following is NOT typically shown on a P&ID diagram?
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What do P&IDs serve as for plant operating and engineering staff after construction?
What do P&IDs serve as for plant operating and engineering staff after construction?
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What is the purpose of a P&ID diagram during the design and pre-construction phases?
What is the purpose of a P&ID diagram during the design and pre-construction phases?
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What type of signal does the level controller send to the diaphragm-operated level control valve in Figure 7?
What type of signal does the level controller send to the diaphragm-operated level control valve in Figure 7?
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Study Notes
P&ID vs PFD
- The P&ID diagram includes more detail than the PFD.
P&ID Details
- Shows the details of equipment orientation, piping, instrumentation, and control systems.
- Provides information about equipment orientation.
Purpose of P&IDs
- In operation, repair, and modification of the plant, P&IDs serve as a guide for operations, maintenance, and engineering staff.
- During design and pre-construction phases, P&IDs facilitate communication among designers, engineers, and operators.
- For field construction and inspection personnel during construction, P&IDs provide a detailed guide for installation and inspection.
- After construction, P&IDs serve as a reference for plant operating and engineering staff.
Control Loop Components
- In Figure 7, the instrument that senses the tank level is not specified.
- The level controller sends an electronic signal to the diaphragm-operated level control valve.
- The instrument that records the tank level is not specified.
- The control system indicated by the control lines in Figure 7 is a feedback control loop.
P&ID Content
- Typically includes information about equipment, piping, instrumentation, and control systems.
- Does not typically show information about civil foundations or building layouts.
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Description
Test your knowledge on piping and instrumentation diagrams (P&IDs) with this quiz. Learn about the importance of P&IDs in showing equipment details, piping orientation, and control and instrumentation devices.