Clearance volume: The volume of the engine cylinder (including the combustion chamber volume) above the piston when it is in the TDC position. 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 PostCircuit breaker Next PostCompressed Natural Gas (CNG)