Coal Mines Regulations 2026 MCQ Quiz - Part 04 | Indian Minerology

20 MCQs on Electricity, Machinery, Mine Plans, Strata Control, Draft OSHWC 2026 & DGMS 2025 Updates

Expert Level for DGMS Statutory Exams, Mining Engineers & Safety Professionals | Nagpur Mining Community

Q1. Under Draft OSHWC (Coal Mines) Regulations 2026, electrical installations in mines must comply with standards from?

A) Indian Electricity Rules only B) Central Electricity Authority regulations & DGMS approvals C) No specific standards D) State electricity board only

Correct: B) Central Electricity Authority regulations & DGMS approvals (draft aligns with safety codes)

Q2. In coal mines, flameproof apparatus is mandatory in which zones as per CMR & DGMS?

A) Only surface B) Gassy & fiery seams (belowground hazardous areas) C) Opencast only D) All areas

Correct: B) Gassy & fiery seams (belowground hazardous areas) (CMR Reg 181; retained in draft 2026)

Q3. DGMS(Tech.) Circular 07 of 2025 requires safety features like proximity sensors in?

A) Underground conveyors only B) HEMM & auxiliary equipment in OC coal/metal mines C) Ventilation fans D) Electrical switchgear

Correct: B) HEMM & auxiliary equipment in OC coal/metal mines (to prevent fatal accidents)

Q4. Mine plans & sections under CMR must be prepared & updated by whom?

A) Manager only B) Surveyor & Manager; submitted to DGMS C) Workers' representative D) No updates needed

Correct: B) Surveyor & Manager; submitted to DGMS (CMR Reg 12–16; draft 2026 likely strengthens digital submission)

Q5. Strata control & roof support in underground coal mines follow guidelines from?

A) DGMS Circular 01 of 2025 only B) CMR Reg 99–108 & DGMS-approved support plan C) No specific guidelines D) State mining dept only

Correct: B) CMR Reg 99–108 & DGMS-approved support plan (risk-based; draft emphasizes monitoring)

Q6. Environmental monitoring system in belowground coal mines is required as per which DGMS circular?

A) Cir_04_Tech_MAMID (older; reinforced in recent) B) DGMS(Tech.) Circulars on continuous gas/dust monitoring C) No requirement D) Only for gassy Degree III

Correct: B) DGMS(Tech.) Circulars on continuous gas/dust monitoring (enhanced in 2025–26 for safety)

Q7. In Draft 2026 Regulations, guarding of machinery must prevent access to?

A) Only moving parts B) Dangerous parts of machinery & provide interlocks C) No guarding needed D) Electrical parts only

Correct: B) Dangerous parts of machinery & provide interlocks (draft adopts OSH&WC Code machinery safety)

Q8. Electrical earthing in coal mines must be tested how often?

A) Yearly B) Monthly or as per DGMS/CMR schedule C) No testing D) Only during installation

Correct: B) Monthly or as per DGMS/CMR schedule (Reg 181–190; safety critical)

Q9. Mine abandonment plans must include sealing & monitoring for how long post-closure?

A) No period B) As per DGMS approval (typically ongoing for subsidence/fire risk) C) 1 year D) 5 years

Correct: B) As per DGMS approval (typically ongoing for subsidence/fire risk) (CMR & draft 2026 post-closure duties)

Q10. DGMS(Tech.)(S&T) Circular 02 of 2025 specifies minimum air quantity for?

A) Opencast only B) Continuous Miner & Longwall panels in UG coal mines C) Rescue chambers D) Surface workshops

Correct: B) Continuous Miner & Longwall panels in UG coal mines (modern mechanized faces ventilation)

Q11. In Draft OSHWC 2026, risk assessment for machinery includes?

A) Only electrical risks B) Mechanical, electrical, ergonomic & operational hazards C) No assessment D) Financial only

Correct: B) Mechanical, electrical, ergonomic & operational hazards (draft holistic approach)

Q12. Survey plans must show all workings up to what accuracy?

A) ±5 m B) As per CMR Schedule & DGMS standards (typically high precision for coal) C) No accuracy specified D) ±50 m

Correct: B) As per CMR Schedule & DGMS standards (typically high precision for coal) (Reg 12)

Q13. Intrinsically safe equipment is required in?

A) All coal mines B) Gassy atmospheres for communication & monitoring devices C) Surface only D) No requirement

Correct: B) Gassy atmospheres for communication & monitoring devices (DGMS approvals)

Q14. Draft 2026 Regulations require training on machinery operation for?

A) Managers only B) All operators & maintenance personnel C) No training D) Visitors

Correct: B) All operators & maintenance personnel (competency & safety training emphasis)

Q15. Borehole casing & grouting in mine workings prevent?

A) Only dust B) Inundation & gas migration C) No prevention D) Subsidence

Correct: B) Inundation & gas migration (CMR Reg on old workings)

Q16. Electrical lockout/tagout procedures are mandated by which recent DGMS circular?

A) Cir_02_Tech_MAMID (older; reinforced) B) DGMS Tech. Circulars on energy isolation for maintenance C) No circular D) Only for HEMM

Correct: B) DGMS Tech. Circulars on energy isolation for maintenance (prevents electrical accidents)

Q17. In Draft 2026, mine closure plans must address?

A) Only financials B) Safety, environmental rehabilitation & monitoring C) No plans D) Workers transfer only

Correct: B) Safety, environmental rehabilitation & monitoring (draft post-mining duties)

Q18. Automatic methane monitors in UG coal mines must alarm at what level?

A) 0.5% B) 1.25% or as per DGMS (withdrawal at 1.25%) C) 5% D) No alarm

Correct: B) 1.25% or as per DGMS (withdrawal at 1.25%) (CMR Reg 145; gassy seam safety)

Q19. Machinery examinations & tests under Draft 2026 are responsibility of?

A) Workers B) Competent person appointed by management C) DGMS inspector only D) No examinations

Correct: B) Competent person appointed by management (periodic & certified)

Q20. The Draft OSHWC (Coal Mines) Regulations 2026, once finalized, will integrate with?

A) Old Mines Act fully B) OSH&WC Code 2020 framework, replacing fragmented rules C) MMDR Act only D) No integration

Correct: B) OSH&WC Code 2020 framework, replacing fragmented rules (modern unified safety code for coal sector)

Fantastic work on Part 04! Share your score or doubts in comments. For more on Nagpur-region mining updates, DGMS exam tips, or Part 05 (welfare, training, penalties), follow Indian Minerology. Safe mining always!

👉 Go to Part 05 - Coal Mines Regulations 2026 MCQ Quiz

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