Industrial Engineering Practice at Selected Metal Mines in Western States |
Common terms and phrases
34-inch scraper Activity Chart actual analysis and/or applicable average classification Cumulative Distribution Showing designated dial indicates Distribution Showing Relative drilling cycle efficiency effort element descriptions end of element established Fatigue allowance Flow-Process Chart frequently hole hose idle improvement includes industrial engineering department inspection loading machine material measurement METHODS-TIME MEASUREMENT mining companies mining operations minutes motion motion study normal elemental normal pace Observation sheets obtain one-car-loading cycle percent percentage performance rating performance-rating personnel procedure process chart productive activity programs random rating factor result sampling Scraping and Haulback SCRAPING DISTANCE sequence setup Showing Relative Importance shown in figure skill slushers and scrapers slushing operation specific standard hours standard nomenclature standard-time data statistical sampling steel stopwatch storage study of slushing supervisors supplies symbol task technique therbligs timbered stopes time-study observer Tram truck underground mining usually utilization watch work-measurement work-sampling studies