CH12-Mining-gpoe_2024
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Questions and Answers

What is the primary purpose of logging in the context of mining?

  • To maintain a record of core samples for future reference (correct)
  • To establish a geological and assay database for reserve estimation
  • To determine the quality of the ore
  • To prepare a bench-wise excavation plan for targeted production

    • What is the prime requirement in loading and dispatch management?

  • Managing loading and dispatch within the free time without incurring demurrages (correct)
  • Meeting the production targets
  • Optimizing the number of loading equipment
  • Reducing the penal freight charges

    • What is the main objective of bench-wise excavation planning?

  • To minimize overburden removal and reduce costs
  • To ensure a consistent quality of ore dispatched to the steel plant (correct)
  • To maximize ore production without considering quality
  • To comply with DGMS regulations for mine surface planning

    • Who is responsible for ensuring the safety of persons and equipment in mines?

    <p>Statutory persons specially deployed as per DGMS guidelines</p> Signup and view all the answers

    What is the purpose of sending ore samples to the laboratory for quality analysis?

    <p>To determine the average quality of the ore body</p> Signup and view all the answers

    What is the purpose of water sprinkling in mines?

    <p>To suppress airborne dust at the place of formation</p> Signup and view all the answers

    What is the significance of maintaining bench parameters such as height, width, and gradient in mine surface planning?

    <p>To ensure compliance with DGMS regulations</p> Signup and view all the answers

    What is the main objective of following the general principles laid down in permission letters by the DGMS?

    <p>To ensure the safety of persons and equipment</p> Signup and view all the answers

    What is the ultimate goal of preparing a mine plan and schedule in the context of mining?

    <p>To produce targeted quantities of ore with stipulated quality</p> Signup and view all the answers

    What should be kept at a safe distance during blasting to avoid damage?

    <p>All equipment, including Excavators, Dozers, and Drills</p> Signup and view all the answers

    Which mineral is most often found in blue, but can also be found in brown, pink, yellow, green, and violet?

    <p>Apatite</p> Signup and view all the answers

    What is the primary purpose of core drilling in exploration?

    <p>To determine the thickness of the ore body</p> Signup and view all the answers

    What is the hardness of emerald and aquamarine?

    <p>8</p> Signup and view all the answers

    What is the name of the mineral that is an inspirational stone and develops psychic abilities and spiritual attunement?

    <p>Apatite</p> Signup and view all the answers

    What is the most common mineral found on the surface of the Earth?

    <p>Quartz</p> Signup and view all the answers

    What is the primary consideration in the economic processing of various ores?

    <p>Physical properties of minerals</p> Signup and view all the answers

    What is the term for the sequence of stages involved in mining, including prospecting and restoration?

    <p>Mining sequence</p> Signup and view all the answers

    What determines whether a rock is considered an ore or not?

    <p>The percentage of metal or valuable in the ore</p> Signup and view all the answers

    What is essential to understand in order to develop mines?

    <p>The geology of the area</p> Signup and view all the answers

    What is an ore, in terms of minerals?

    <p>An aggregation of minerals from which a metal or metallic compound can be recovered economically</p> Signup and view all the answers

    What is the primary purpose of sub-grade drilling in blasting operations?

    <p>To compensate for drilling loss after the drill is removed</p> Signup and view all the answers

    What is the recommended minimum length of the hole in relation to the height of the bench for good blasting?

    <p>At least 10% greater than the height of the bench</p> Signup and view all the answers

    What is the general rule of thumb for determining the burden of drill holes in relation to the diameter of the holes?

    <p>200 to 300 times the diameter of the holes</p> Signup and view all the answers

    What is the purpose of marking holes on the surface in a square pattern or staggered pattern?

    <p>To ensure uniform blasting</p> Signup and view all the answers

    Why is it necessary to have larger spacing and burden in soft rocks?

    <p>Because soft rocks require less energy for breaking</p> Signup and view all the answers

    What is the primary purpose of maintaining a drilling block of sufficient length and width in mine production faces?

    <p>To ensure efficient drilling and blasting operations</p> Signup and view all the answers

    What is the significance of drilling parameters in mine blasting operations?

    <p>To ensure effective drilling parameters based on rock characteristics</p> Signup and view all the answers

    What is the purpose of marking drill hole positions on the ground prior to drilling operations?

    <p>To ensure accurate drilling and blasting operations</p> Signup and view all the answers

    What is the main advantage of using excavator-dumper combinations in mine excavation and transport operations?

    <p>Increased capacity and flexibility in material transport</p> Signup and view all the answers

    What is the primary purpose of using big water sprinklers in mines?

    <p>To suppress dust and prevent respiratory problems</p> Signup and view all the answers

    What is the primary consideration in creating a daily operation schedule in mining?

    <p>Ensuring quality parameters and targeted production</p> Signup and view all the answers

    What is the benefit of using Site Mixed Emulsion (SME) Explosive in mining operations?

    <p>It reduces production costs and improves transportation safety</p> Signup and view all the answers

    What is the purpose of monitoring bench-wise shovel operation during a shift?

    <p>To ensure quality parameters are met</p> Signup and view all the answers

    What is the significance of removing extraneous materials before blasting an ore body?

    <p>To ensure quality parameters are met</p> Signup and view all the answers

    What is the primary purpose of arranging transportation in mine operations?

    <p>To improve transportation safety</p> Signup and view all the answers

    What is the benefit of crushing ore at the primary crusher in a mining operation?

    <p>It enhances the quality of the extracted ore</p> Signup and view all the answers

    What is the primary objective of scheduling deployment of shovels in a shift?

    <p>To ensure quality parameters are met</p> Signup and view all the answers

    What is the significance of synchronizing available bench-wise blasted material quality and quantity in a mining operation?

    <p>It ensures quality parameters are met</p> Signup and view all the answers

    What is the primary purpose of bench-wise quality excavation monitoring?

    <p>To ensure quality parameters are met</p> Signup and view all the answers

    What is the benefit of using the on-site mixed loading emulsion explosive provided by the invention in mining operations?

    <p>It reduces production costs and improves transportation safety</p> Signup and view all the answers

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