Question: 1. With reference to the lecture notes, explain the concepts in the following acronyms to a non-mining person: [15] a. TCO b. Ut c.

1. With reference to the lecture notes, explain the concepts in the

1. With reference to the lecture notes, explain the concepts in the following acronyms to a non-mining person: [15] a. TCO b. Ut c. OEE d. MTBF e. LCC 2. Use the information in the table below to answer the following questions. Show the formula's you use and your calculations: a. Determine the shovel requirements [12] b. Determine the truck replacement period in years [16] c. Determine drill rig requirements for the 140mm diameter holes [10] Av Ut P1% of DOH NT Truck payload Truck cycle time Ore production Waste production Narrow bench waste Total production Expected life per machine Drill yield ore (311mm) Drill yield waste (311mm) Presplit yield (140mme) Buffer blast yield (140mm) Penetration rate (311mm) Penetration rate (140mm) Ore loading rate Waste loading rate Narrow bench loading rate % 88% % 90% % 5% Days/yr 20 t Minutes Mtpa Mtpa Mtpa Mtpa Hr t/m t/m t/m t/m m/hr m/hr t/hr Shovels Trucks 87% 88% 12% 30 t/hr t/hr 6.5 15.0 555 2643 600 800 450 140 6.5 15.0 3.5 3.5 25.0 25.0 85000 65000 Drills 65% 65% 35% 30 6.5 12.0 3.5 22.0 24000 45 140 100 18 13.0 16.0

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ideas in the given abbreviations made sense of for a nonmining individual a TCO Absolute Expense of Possession TCO alludes to the complete expense related with buying and working a piece of gear or re... View full answer

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