Step-by-step explanation:
Engineering drawing abbreviations and symbols are used to communicate and detail the characteristics of an engineering drawing. There are many abbreviations common to the vocabulary of people who work with engineering drawings in the manufacture and inspection of parts and assemblies.
Some examples of these are:
BOT: Bottom
B.O.W.: Bottom of Wall
BP: Blue Print (or B/P)
BV: Butterfly Valve
CAD: Cadmium or Computer-Aided Drafting
CBORE: Counterbore
C.C.: Center to Center
C.D.: Construction Document
C.F.M.: Cubic Feet per Minute
CFS: Cubic Feet per Second
C.I.: Cast Iron
E.F.: Exhaust Fan
EQ: Equal, or Equally
E.W.: Each Way
Ext.: Exterior
FACP: Fire Alarm Control Panel
FAO: Finish All Over