What type of diagrams are the simplest drawings used in the process industries?

A) Process Flow Diagrams (PFDs)
B) Block Flow Diagrams (BFDs)
C) Engineering Flow Diagrams (EFDs)
D) Piping and Instrumentation Diagrams (P&IDs)


Answer: B
Explanation: A) Incorrect. Process flow diagrams allow process technicians to trace the step-by-step flow of a process.
B) Correct. Block Flow Diagrams (BFDs) diagrams are the simplest drawings used in the process industries.
C) Incorrect. Engineering flow diagrams contain all process plant information, including equipment, flows to and from each piece of equipment, and the explanation of those flows and products.
D) Incorrect. Piping and Instrumentation Diagrams (P&IDs) are similar to process flow diagrams but provide more complex process information.

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