Dwell: Dwell is the time expressed in terms of the degrees of distributor cam rotation for which the contact breaker points remain closed. It is usually 55 to 70 percent of the total cam angle. 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 PostDouble Overhead Camshaft ( DOHC) Next PostDynamic timing meter