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What instrument drawing shows an actual representation of a process operating sequence?

A. Orthographic drawings
B. Location drawing
C. Isometric drawing
D. P&ID

Answer :

Final answer:

The instrument drawing that shows an actual representation of a process operating sequence is the P&ID. It lays out the connectivity of equipment and control systems in a schematic form useful for operational and control strategy purposes, without implying physical placement or scale. d. P&ID

Explanation:

Instrument Drawing Representation of a Process Operating Sequence

When it comes to instrument drawings that show an actual representation of a process operating sequence, the correct answer is d. P&ID (Piping & Instrumentation Diagram). A P&ID is a schematic layout that displays the various units, such as storage tanks, pumps, and valves, their connectivity, as well as the control systems involved in a plant's operation. They use specific symbols to represent actuators, sensors, and controllers, essential for the engineering of plant control strategies. While it's important to note that P&IDs are not architectural or to scale, they play a crucial role in ensuring production targets are met and that maintenance and troubleshooting can be efficiently conducted.

P&IDs are not designed to show relative locations of equipment or actual sizes and lengths; they primarily focus on the connection and flow between different system components, rather than their physical arrangement. This makes P&IDs distinct from orthographic drawings, location drawings, and isometric drawings, which may provide more spatial representation of a system.

Due to its standardized nature and role in illustrating operational sequences without implying physical arrangement, the P&ID is paramount in the industrial world for discussing plant operations and formulating control strategy development.

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