Questions and Answers
Which subsidiary of CIL has Surface Miners equipment?
What is the total number of coal washeries in CIL?
Which mining technology does not require blasting?
Which of the following is a continuous mining method?
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Which type of coal is classified mainly on the basis of calorific value?
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When did CIL receive Maharatna status?
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Which of the following industries uses coke?
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Which of the following is not an underground equipment?
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Which of the following equipments are chain mounted?
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What is the largest capacity of hydraulic Shovels in the World?
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What is the full form of LHD?
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Which OCP has deployed the largest capacity shovel Dumper combination in CIL?
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What is the largest size of Dozer in CIL?
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Which of the following is an intermittent mining technology?
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What is the largest size of Dumper in CIL?
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What is the largest size of Rope Shovels in CIL?
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Study Notes
Equipment and Technology
- Side Discharge Loader (SDL) and Load Haul Dump (LHD) are both chain-mounted equipments.
- Mass production technologies for underground (UG) mining include SDL, LHD, and also PSLW.
- Tyre-mounted equipments available include Pay Loader, Grader, and Dozer.
- Largest Shovel-Dumper combination in Coal India Limited (CIL) is 42cum + 240T.
Capacities and Sizes
- Largest capacity shovel-dumper combination deployed in CIL is at the Gevra OCP.
- CIL's largest Rope Shovel size is 42cum.
- The largest Dumper size in CIL is 360T.
- The world’s largest Rope Shovel size is 63cum.
- The largest boom length of a Dragline globally is 150 m.
- The largest size of hydraulic shovels in CIL is 18cum.
- The largest hydraulic shovel in the world has a capacity of over 50cum.
- CIL's largest Drill size is 381mm.
- The largest Dozer in CIL has 850hp.
Mining Technologies
- LHD stands for Load Haul Dump.
- Mass production technologies for underground mining include Longwall, SDL, LHD, and Bord & Pillar.
- Intermittent mining technology is associated with Bord & Pillar.
- The largest bucket capacity for Dragline in CIL is 35cum.
- The world's largest Dragline has a bucket capacity of 129cum.
- High Wall Mining is located in WCL; Shortwall mining is used in SECL.
- In-pit crushing & conveying technology is utilized in Piparwar OCP.
Production and Operations
- CIL operates 17 coal washeries.
- Surface Miners can handle both coal and overburden (OB).
- SDL and LHD are utilized for loading operations in UG mining.
- Surface Miner, Longwall, and Bucket Wheel Excavator do not require blasting.
Industry Applications
- Low Temperature Carbonization Coke (LTC Coke) is utilized by various industries including steel, cement, and power plants.
- Coking coal includes Prime Coking, Medium Coking, and Semi Coking types.
Corporate and Statistics
- CIL was awarded Maharatna status on 11th April 2011.
- CIL was the 5th company to achieve Maharatna status, following ONGC, IOC, and SAIL.
- Total manpower of CIL as of 1st March 2011 was 3.84 lakh.
- CIL operated a total of 471 mines as of 1st April 2011.
- After expansion, Gevra OCP will be the largest in CIL.
Partnerships and Subsidiaries
- MCL has established joint ventures MJSJ and MNH.
- CIL established a foreign subsidiary, CIAL, in Mozambique.
- CIAL stands for Coal India Africa Limited and is a CIL subsidiary.
Classification and Types of Coal
- Coal is classified based on calorific value mainly into coking coal, non-coking coal, semi coking coal, and NEC coal.
- Coking coal is primarily classified based on its properties.
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Description
Test your knowledge on mining equipment and mass production technologies used in underground operations. This quiz covers essential questions about chain-mounted and tyre-mounted equipment, as well as specific companies and their deployments in the field. Enhance your understanding of mining machinery and its applications.
