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DGMS CMR 2026: Latest Changes in Coal Mines Regulations (CMR 2017) | Indian Minerology

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DGMS CMR 2026: Latest Changes in Coal Mines Regulations (CMR 2017) DGMS CMR 2026: Latest Changes in Coal Mines Regulations Explained The Directorate General of Mines Safety (DGMS) has introduced important updates under the Coal Mines Regulations, 2017 (CMR) during 2025–26 to strengthen safety, supervision, and statutory compliance in coal mines across India. This article explains only the confirmed changes within CMR , without including draft rules or general safety circulars. 1. Amendment in Regulation 30 – Assistant Manager Provisions DGMS has amended Regulation 30 of CMR 2017 through a Gazette Notification to revise requirements related to Assistant Managers . Key Changes The number of Assistant Managers is now linked to mine production and operational scale High-production coal mines must deploy additional Assistant Managers At least one Assistant Manager must hold a First Class Manager’s Certificate in large mines Impact: Thi...
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Longwall Mining MCQ Series (Complete Index) | Indian Minerology

Longwall Mining MCQ Series (Complete Index)

📚 Longwall Mining MCQ Series (Complete Index)

Part 01 (Q1 – Q15)

Introduction to Longwall basics, equipment, roof support and hazards.

👉 Read Part 01

Part 02 (Q16 – Q30)

Gate roads, conveyors, retreat & advance methods, hazards and ventilation.

👉 Read Part 02

Part 03 (Q31 – Q45)

Panel width, longwall ploughs, goaf, weighting, methane gas problems.

👉 Read Part 03

Part 04 (Q46 – Q60)

Roof behaviour, subsidence, LTCC, strata control, automation in Longwall.

👉 Read Part 04

Part 05 (Q61 – Q75)

Dip limits, Indian Longwall challenges, automation, gas drainage, recovery.

👉 Read Part 05 (Final)
✅ This series covers 75 Key MCQs on Longwall Mining, useful for Mining Engineering Students, Competitive Exams, and Professionals revising mining methods.

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ADVANCING AND RETREATING LONGWALLS

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