Ordinances making the annual tax levy, appropriation ordinances, ordinances and resolutions pertaining to local improvements and assessments, ordinances and resolutions providing for or directing any investigation of city affairs, resolutions requesting information from administrative officers or directing administrative action, and emergency measures shall take effect at the time indicated therein. All ordinances, except those imposing any penalty, fine or forfeiture, and all resolutions shall take effect immediately upon final passage unless otherwise specifically provided therein. Ordinances adopted by a vote of the electors shall take effect at the time indicated therein, or if no time be specified, then ten days after their adoption. No measure making or amending a grant, renewal or extension of a franchise or other special privilege shall ever be passed until it has been read on three separate days.