Bottom Dead centre (BDC): The position of the crankshaft when the piston is in its lowest position, i.e., the position farthest from the cylinder head. Related posts: Personnel Management Operative Functions Administrative Role of PM Competency HR Management Role Change Personnel Policies Personnel Procedures Appealed Policies Implied Policies Specific Policies Personnel records Research Pure research Personnel research Attitude or Opinion Survey Turnover Secondary research Applied research Personnel audit Read more articles Previous PostArmature reaction Next PostBrake Mean Effective Pressure (BMEP)