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Questions and Answers
What is the primary purpose of a Process & Instrumentation Diagram (P&ID)?
What is the primary purpose of a Process & Instrumentation Diagram (P&ID)?
- To detail the landscaping and architectural design of the plant.
- To provide a detailed electrical wiring schematic for the plant.
- To offer a graphical representation of the process, including hardware and control systems. (correct)
- To outline the company's financial performance and regulatory filings
P&IDs are only useful during the initial design phase of a plant and are not relevant for maintenance or operation activities.
P&IDs are only useful during the initial design phase of a plant and are not relevant for maintenance or operation activities.
False (B)
Besides piping and equipment, what other key element does a P&ID depict?
Besides piping and equipment, what other key element does a P&ID depict?
instrumentation
A P&ID ties together the system description, the process flow diagram, the electrical and fluid power control schematic, and the control logic diagram; it accomplishes this by showing all of the piping, equipment, principal instruments, instrument loops, and control ______.
A P&ID ties together the system description, the process flow diagram, the electrical and fluid power control schematic, and the control logic diagram; it accomplishes this by showing all of the piping, equipment, principal instruments, instrument loops, and control ______.
Match the following elements with the function that can be found within a P&ID.
Match the following elements with the function that can be found within a P&ID.
Which of the following is the MOST accurate description of the initial step in understanding process technology, irrespective of its intricacy?
Which of the following is the MOST accurate description of the initial step in understanding process technology, irrespective of its intricacy?
The MPS® PA Compact Workstation is primarily designed for advanced users with existing expertise in closed-loop control systems.
The MPS® PA Compact Workstation is primarily designed for advanced users with existing expertise in closed-loop control systems.
Within a P&ID, what primary categories of process control elements are typically identified?
Within a P&ID, what primary categories of process control elements are typically identified?
In a P&ID, a LIC abbreviation typically stands for ______ Indicator Controller.
In a P&ID, a LIC abbreviation typically stands for ______ Indicator Controller.
List three components typically found in the Festo MPS® PA Compact Workstation.
List three components typically found in the Festo MPS® PA Compact Workstation.
What is the purpose of 'tagging' a component in a P&ID, such as 'LIC/B101'?
What is the purpose of 'tagging' a component in a P&ID, such as 'LIC/B101'?
Match the process control elements with their function:
Match the process control elements with their function:
P&ID symbols are universal, meaning the same symbol is used for the same component across all industries and companies.
P&ID symbols are universal, meaning the same symbol is used for the same component across all industries and companies.
Which of the following items is typically included in a Process & Instrumentation Diagram (P&ID)?
Which of the following items is typically included in a Process & Instrumentation Diagram (P&ID)?
A P&ID includes extensive explanatory notes to provide detailed operational context for each component.
A P&ID includes extensive explanatory notes to provide detailed operational context for each component.
List three types of information about valves that are included in a P&ID.
List three types of information about valves that are included in a P&ID.
System ratings and operational values such as minimum, normal, and maximum flow, _________ and _________ are included in a P&ID.
System ratings and operational values such as minimum, normal, and maximum flow, _________ and _________ are included in a P&ID.
Match the following P&ID elements with their typical representations:
Match the following P&ID elements with their typical representations:
Which of the following best describes the purpose of instrument identification tags on a P&ID?
Which of the following best describes the purpose of instrument identification tags on a P&ID?
In EMCS tags, the first letter always indicates the function of the instrument such as indicating, controlling, or recording.
In EMCS tags, the first letter always indicates the function of the instrument such as indicating, controlling, or recording.
In an instrument tag 'FIC-101', what does 'FIC' typically stand for?
In an instrument tag 'FIC-101', what does 'FIC' typically stand for?
In EMCS tags, the letter 'T' as a first letter generally stands for _________.
In EMCS tags, the letter 'T' as a first letter generally stands for _________.
Which of the following is an example of a passive function indicated by the second/succeeding letter in an instrumentation tag?
Which of the following is an example of a passive function indicated by the second/succeeding letter in an instrumentation tag?
An instrument with the tag 'PDIAH' indicates differential pressure and has a high-level alarm.
An instrument with the tag 'PDIAH' indicates differential pressure and has a high-level alarm.
What does the 'LY' in an EMCS tag represent, given that the instrument described is a current to pressure signal converter?
What does the 'LY' in an EMCS tag represent, given that the instrument described is a current to pressure signal converter?
Which of the following is generally NOT represented by symbols on a P&ID?
Which of the following is generally NOT represented by symbols on a P&ID?
In a P&ID, lines with specific markings represent the _________ _________ along with their size and material specifications.
In a P&ID, lines with specific markings represent the _________ _________ along with their size and material specifications.
Match the following letters used in instrument identification tags with their meanings:
Match the following letters used in instrument identification tags with their meanings:
Flashcards
What is a P&ID?
What is a P&ID?
A graphical representation of a process, including hardware (piping, equipment) and control systems.
P&ID Uses
P&ID Uses
Design, construction, operation, and maintenance of the plant.
P&ID Components
P&ID Components
Piping, equipment, instruments, instrument loops, and control interlocks.
P&ID Information Types
P&ID Information Types
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P&ID Primary Role
P&ID Primary Role
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P&ID
P&ID
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P&ID: Piping Details
P&ID: Piping Details
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P&ID: Mechanical Equipment
P&ID: Mechanical Equipment
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P&ID: Valves
P&ID: Valves
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P&ID: Interconnections
P&ID: Interconnections
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P&ID: System Ratings
P&ID: System Ratings
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P&ID: Composition & Instruments
P&ID: Composition & Instruments
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P&ID: Miscellaneous
P&ID: Miscellaneous
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P&ID Omissions
P&ID Omissions
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EMCS Tag: First Letter
EMCS Tag: First Letter
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EMCS Tag: Second Letter
EMCS Tag: Second Letter
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EMCS Tag: FI RC
EMCS Tag: FI RC
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EMCS Tag: PDIAH
EMCS Tag: PDIAH
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EMCS Tag: TV
EMCS Tag: TV
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EMCS Tag: AT
EMCS Tag: AT
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MPS® PA Compact Workstation
MPS® PA Compact Workstation
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Sensor
Sensor
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Controller
Controller
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Actuator
Actuator
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P&ID (Piping and Instrumentation Diagram)
P&ID (Piping and Instrumentation Diagram)
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Process Elements
Process Elements
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Proportional valve
Proportional valve
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2-way ball valve
2-way ball valve
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Study Notes
- A Process & Instrumentation Diagram (P&ID) provides a graphical representation of a process, including hardware, control systems, and instrumentation technologies; it may also be called a Piping & Instrumentation Diagram.
- P&IDs are utilized in the design, construction, operation, and maintenance of plants
- P&IDs integrate system descriptions, process flow diagrams, electrical and fluid power control schematics, and control logic diagrams to show all piping, equipment, instruments, instrument loops, and control interlocks.
- Plant operations use the P&ID to find facility information such as physical data, financial or regulatory compliance details, safety, and HAZOP data developed during HAZOP sessions.
P&ID Inclusions
- P&IDs include process piping details like sizing, class, numberings, and conveyor belts
- Also included are Mechanical Equipment and numberings
- Also included are manual and control valves, and interconnections with other systems
- Also include nozzles and flanges
- P&IDs note system ratings and operational values like minimum, normal, and maximum flow, temperature, and pressure
- Composition of fluids and instruments, designations, and numbering systems are also included
- Miscellaneous components like vents, drains, special fittings, sampling lines, reducers, increasers, and swagers are captured
- Permanent start-up and flush lines are in the P&ID
- Control inputs/outputs, interlocks, and computer control system input
- Quality level is also a factor
P&ID Exclusions
- Instrument root valves aren't on P&IDs
- Control relays aren't on P&IDs
- Manual switches aren't on P&IDs
- Primary instrument tubing and valves aren't on P&IDs
- Specific pressure, temperature, and flow data is not on P&IDs
- Elbows, tees, and standard fittings are not captured
- Extensive explanatory notes aren't on P&IDs
Instrumentation Identification Tags or EMCS Tags
- First letter indicates the variable, such as Analytical (composition), Burner or Combustion, User-defined etc.
- Second/Succeeding letters note functions such as Alarm, User-defined, Element (sensing) etc.
- Modifiers note factors such as High, Low, Middle/Intermediate, and User-defined
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Description
A Process & Instrumentation Diagram (P&ID) is a graphical representation of a process, including hardware, control systems, and instrumentation technologies. P&IDs integrate system descriptions, process flow diagrams, electrical and fluid power control schematics, and control logic diagrams. Plant operations use the P&ID to find facility information.