Questions and Answers
Which diagram includes more detail, the P&ID or the PFD?
The P&ID
What does the P&ID show the details of?
The general piping orientation
What is the purpose of P&IDs in the operation, repair, and modification of the plant?
To provide a concise format for how a system should function
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?
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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?
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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?
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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?
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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?
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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?
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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?
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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?
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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?
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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?
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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?
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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?
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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?
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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?
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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?
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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.
