Define the following terms:

Question

a. Application block
b. Legend
c. Symbol
d. Title block
e. Block flow diagram (BFD)
f. Electrical diagram
g. Isometric drawing
h. Piping and instrumentation diagram (P&ID)
i. Plot plan
j. Process flow diagram (PFD)
k. Process schematic
l. Utility flow diagram (UFD)

Answer 1

a. Application block is the main part of a drawing that contains symbols and defines elements such as relative position, types of materials, equipment descriptions, flows, and functions.
b. A legend is a section of a drawing that explains or defines the information or symbols contained within the drawing.
c. A symbol is a simple illustration used to represent a piece of equipment, an instrument, or other device on a PFD or P&ID.
d. A title block is a section of a drawing (typically located in the bottom right corner) that contains the drawing title, drawing number, revision number, sheet number, company information, process unit, and approval signatures; it identifies the drawing as a legend, system, or layout.
e. Block flow diagram (BFD) is a simple illustration that shows a general overview of a process, indicating its parts and their interrelationships.
f. Electrical diagram is an illustration showing power transmission and how it relates to the process.
g. Isometric drawing is an illustration showing objects as they would appear to the viewer.
h. Piping and instrumentation diagram (P&ID) is a detailed illustration that graphically represents the relationship of equipment, piping, instrumentation, and flows contained within a process in the facility.
i. Plot plan is an illustration drawn to scale, showing the layout and dimensions of equipment, units, and buildings; also called an equipment location drawing.
j. Process flow diagram (PFD) is a basic illustration that uses symbols and direction arrows to show the primary flow of a product through a process.
k. Process schematic is a screen display of a process in the computer control system; it shows control parameters, but not piping and equipment details.
l. Utility flow diagram (UFD) is an illustration that provides process technicians a PFD-type view of the utilities used for a process.