Longwall Mining MCQ Questions - Part 01 | Indian Minerology

Longwall Mining MCQ Questions - Part 01

1. Where is the Longwall mining method best suited?

• A. Flat and moderately dipping seams
• B. Steeply dipping seams
• C. Broken and disturbed seams
• D. Anywhere

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Answer: A. Flat and moderately dipping seams

2. What is the primary equipment used to cut coal in Longwall mining?

• A. Shearer
• B. Dragline
• C. Continuous miner
• D. Scooptram

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Answer: A. Shearer

3. What is the typical face length in Longwall mining?

• A. 100 to 300 meters
• B. 10 to 50 meters
• C. 300 to 600 meters
• D. 600 to 1000 meters

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Answer: A. 100 to 300 meters

4. What kind of roof support is used in Longwall mining?

• A. Hydraulic powered supports
• B. Manual timber supports
• C. Steel arches
• D. None of the above

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Answer: A. Hydraulic powered supports

5. On what does Longwall mining productivity depend?

• A. Seam thickness
• B. Mining face length
• C. Equipment efficiency
• D. All of the above

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Answer: D. All of the above

6. What is the main advantage of Longwall mining?

• A. High production rate
• B. Reduced labor requirements
• C. Better roof control
• D. All of the above

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Answer: D. All of the above

7. Which equipment provides the best roof support in Longwall mining?

• A. Powered roof supports
• B. Timber supports
• C. Steel arches
• D. Hydraulic jacks

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Answer: A. Powered roof supports

8. What is a major hazard in Longwall mining?

• A. Roof collapse
• B. Flooding
• C. Gas leakage
• D. All of the above

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Answer: D. All of the above

9. What kind of mining process is used in Longwall mining?

• A. Continuous mining
• B. Selective mining
• C. Surface mining
• D. None of the above

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Answer: A. Continuous mining

10. From which part is coal extracted in Longwall mining?

• A. Mining face
• B. Gate roads
• C. Ribs
• D. Shafts

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Answer: A. Mining face

11. How is roof support provided during Longwall mining?

• A. Hydraulic powered supports
• B. Wooden props
• C. Steel arches
• D. No support

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Answer: A. Hydraulic powered supports

12. What controls the face advance rate in Longwall mining?

• A. Equipment efficiency
• B. Roof conditions
• C. Operator skill
• D. All of the above

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Answer: D. All of the above

13. What type of ventilation is required in Longwall mining?

• A. Adequate ventilation to remove gases
• B. No ventilation needed
• C. Closed air circulation
• D. No option

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Answer: A. Adequate ventilation to remove gases

14. What is essential for sustainable success of the mining face in Longwall mining?

• A. Strong roof support
• B. Continuous monitoring
• C. Efficient operation
• D. All of the above

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Answer: D. All of the above

15. How is roof fall controlled in Longwall mining?

• A. Use of hydraulic powered supports
• B. Installing timber props
• C. No support
• D. Chemical injection

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Answer: A. Use of hydraulic powered supports

📚 Longwall Mining MCQ Series

"This series of questions has been designed to develop a deeper understanding of Longwall Mining and to aid in effective examination preparation.” ✅

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