Longwall Mining MCQ Questions - Part 05 | Indian Minerology
Longwall Mining MCQ Questions - Part 05 (Final)
61. The longwall face is generally advanced by:
Show Answer
Answer: A. Continuous cutting cycle
62. The productivity of Longwall mining compared to Bord & Pillar is:
Show Answer
Answer: C. Higher
63. Roof supports in Longwall must be advanced:
Show Answer
Answer: B. After shearer passes
64. What is the typical angle of dip suitable for Longwall?
Show Answer
Answer: A. 0° – 35°
65. The face length in Indian Longwall mines is often limited due to:
Show Answer
Answer: D. All of the above
66. The floor heave issue in Longwall is caused by:
Show Answer
Answer: A. High abutment pressure
67. Which mechanical miner is best suited for Longwall development?
Show Answer
Answer: A. Continuous Miner
68. Periodic weighting intervals depend upon:
Show Answer
Answer: D. All of the above
69. Gas drainage in Longwall is needed mainly for:
Show Answer
Answer: A. Methane
70. The main haulage system used in Longwall face is:
Show Answer
Answer: C. Armoured Face Conveyor (AFC)
71. In Longwall, goaf filling with sand is known as:
Show Answer
Answer: A. Stowing
72. Major factor for Longwall success in India is:
Show Answer
Answer: D. All of the above
73. Which of the following faces sudden weighting often?
Show Answer
Answer: A. Deep seams
74. Which parameter is critical to Longwall panel design?
Show Answer
Answer: D. All of the above
75. Longwall mining ensures coal recovery up to:
Show Answer
Answer: C. 80–90%
📚 Longwall Mining MCQ Series (Complete)
👉 "You have successfully completed the entire 75 MCQs series on Longwall Mining."✅
⬅️ Previous (Part 04) 🏠 Go to Homepage
Post a Comment