DGMS Tech. Circular No. 6 of 2024 

Subject: Training Syllabus for Electrical Engineers, Electrical Supervisors and Electricians engaged in operation & maintenance of electrical installations in mines and oilfields (Issued under Regulation 118 of CEAR, 2023) 

Detailed Notes 1. Background & Purpose Electricity is extensively used in coal, metalliferous mines, and oilfields. Accidents due to electrical faults have been frequent in the past. This circular standardizes training for Electrical Engineers, Supervisors, and Electricians to ensure competence and safety. 2. Legal Framework - CEAR 2023, Regulation 118 (mandatory training)
- CMR 2017, MMR 1961, and Mines Act 1952 (statutory provisions)
- Supported by DGMS guidelines 

3. Categories Covered 1. Electrical Engineers (Degree/Diploma holders)
2. Electrical Supervisors
3. Electricians working in mines & oilfields 

4. Training Syllabus A. Basic Electrical Knowledge – circuits, motors, transformers.
B. Mine Electrical Systems – flameproof equipment, cables, substations.
C. Operation & Maintenance – switchgear, pumps, winding systems.
D. Safety – LOTO, electrical rescue, first aid.
E. Explosion Protection – flameproof & intrinsically safe devices.
F. Statutory Knowledge – Mines Act, CMR, MMR, CEAR 2023.
G. Practical Demonstrations – megger testing, cable jointing, fire drills. 

5. Training Methodology - Classroom sessions
- Hands-on practical training
- Field exposure in mines/oilfields
- Final written + practical assessment 

6. Certification & Compliance Training must be undertaken at DGMS/CEA approved centers. Certificates are mandatory for duty as an Electrical Engineer, Supervisor, or Electrician. 

7. Importance & Implications ✔ Standardized skill level across industry
✔ Reduction in electrical accidents
✔ Mines must maintain training records for DGMS inspection
✔ Only trained personnel can operate/maintain electrical equipment
✔ Helps align Indian mines with international safety practices 

Exam Key Point 👉 'Circular 6 of 2024 = CEAR 118 = Training Mandatory for Electrical Engineers, Supervisors & Electricians' 

MCQs – DGMS Tech. Circular No. 6 of 2024 Q1. DGMS Tech. Circular No. 6 of 2024 is issued under which regulation of CEAR 2023? 1) Reg. 115 2) Reg. 116 3) Reg. 117 4) Reg. 118 5) Reg. 120 

✅ Answer: 4) Reg. 118 Solution: The circular prescribes training syllabus under Regulation 118 of CEAR 2023.

Q2. Who are the personnel covered under this training syllabus? 1) Mechanical Engineers 2) Mining Engineers only 3) Electrical Engineers, Supervisors & Electricians 4) Safety Officers only 5) Winding Engine Operators 

✅ Answer: 3) Electrical Engineers, Supervisors & Electricians Solution: The circular is specific to electrical personnel in mines & oilfields.

Q3. What is the primary objective of this circular? 1) To reduce coal dust explosions 2) To standardize electrical training in mines 3) To regulate blasting operations 4) To improve haul road safety 5) To monitor mine slope stability 

✅ Answer: 2) To standardize electrical training in mines Solution: The purpose is training & certification for electrical staff.

Q4. Flameproof (FLP) equipment is used in: 1) Opencast haul roads 2) Surface workshops 3) Underground gassy coal mines 4) Manager’s office 5) Survey labs ✅ Answer: 3) Underground gassy coal mines Solution: FLP equipment prevents ignition of methane in underground mines.

Q5. Which of the following is a practical safety procedure included in the syllabus? 1) Cable excavation 2) Lock-out/Tag-out (LOTO) 3) Core drilling 4) Rock bolting 5) Hydraulic pump testing 

✅ Answer: 2) Lock-out/Tag-out (LOTO) Solution: LOTO is essential for preventing accidental energisation.

Q6. Electrical rescue and shock treatment training includes: 1) CPR and artificial respiration 2) Rock mass rating 3) Hydraulic circuit analysis 4) Fuel testing 5) Ore grade estimation

 ✅ Answer: 1) CPR and artificial respiration Solution: Training includes rescue of shock victims.

Q7. Which of the following is NOT a part of the training syllabus? 1) Transformer maintenance 2) Flameproof equipment handling 3) Cable jointing 4) Geological mapping 5) Electrical fire safety 

✅ Answer: 4) Geological mapping Solution: Geological mapping is not related to electrical syllabus.

Q8. Which document mandates training for electrical workers in mines? 1) MMR 1961, Reg. 162 2) CEAR 2023, Reg. 118 3) Mines Act 1952, Sec. 45 4) CMR 2017, Reg. 85 5) DGMS Legis. Circular No. 1 of 2021 

✅ Answer: 2) CEAR 2023, Reg. 118 Solution: The training is mandated under CEAR Reg. 118.

Q9. Intrinsically Safe (IS) equipment is designed to: 1) Withstand high voltage 2) Prevent sparks that may ignite gas 3) Increase power factor 4) Improve illumination in opencast mines 5) Enhance diesel engine performance ✅ Answer: 2) Prevent sparks that may ignite gas Solution: IS circuits are used in methane-prone mines.

Q10. Which authority approves training institutes for this syllabus? 1) State Mining Board 2) BIS 3) DGMS/CEA 4) Mine Owners Association 5) IITs 

✅ Answer: 3) DGMS/CEA Solution: Training must be DGMS/CEA-approved.

Q11. A key element of assessment after training is: 1) Oral viva only 2) Written + Practical test 3) Only field inspection 4) Experience certificate verification only 5) Safety conference participation 

✅ Answer: 2) Written + Practical test Solution: Candidates must clear both theory & practical.

Q12. Which is an electrical hazard in underground mines? 1) Rock falls 2) Methane ignition from arcing 3) Spontaneous heating 4) Slope instability 5) Dust explosions 

✅ Answer: 2) Methane ignition from arcing Solution: Arcing from electrical equipment can ignite methane.

Q13. A Megger is used in training for: 1) Checking cable tension 2) Testing insulation resistance 3) Measuring voltage drop 4) Monitoring pump discharge 5) Testing air velocity 

✅ Answer: 2) Testing insulation resistance Solution: Megger is for insulation testing of cables/equipment.

Q14. Who maintains training records for inspection? 1) DGMS HQ 2) CIL Corporate Office 3) Mine management 4) Local police 5) BIS 

✅ Answer: 3) Mine management Solution: Mines must maintain records for DGMS inspections.

Q15. Which of these is a flameproof equipment example? 1) Laptop 2) Mobile charger 3) FLP switchgear 4) Gas welding torch 5) Electric fan 

✅ Answer: 3) FLP switchgear Solution: FLP switchgear is certified flameproof equipment.

Q16. What is the minimum qualification of an Electrical Engineer under this circular? 1) ITI Certificate 2) Diploma/Graduate in Electrical Engineering 3) High school pass 4) Mining Engineer’s degree 5) Safety Officer’s certificate ✅ Answer: 2) Diploma/Graduate in Electrical Engineering Solution: Engineers must hold a diploma/degree.

Q17. Which safety device prevents accidental energisation during maintenance? 1) Overload relay 2) LOTO system 3) Oil circuit breaker 4) Lightning arrester 5) Earthing electrode 

✅ Answer: 2) LOTO system Solution: Lock-out/Tag-out ensures safe isolation.

Q18. Training includes study of case histories of: 1) Geological accidents 2) Electrical accidents 3) Transportation mishaps 4) Blasting accidents 5) Subsidence cases 

✅ Answer: 2) Electrical accidents Solution: Past electrical accidents are studied for prevention.

Q19. Which regulation under CEAR deals with adequacy of supervisors? 1) Reg. 115 2) Reg. 116 3) Reg. 117 4) Reg. 118 5) Reg. 120 ✅ Answer: 3) Reg. 117 Solution: Reg. 117 → adequacy of supervisors; Reg. 118 → training syllabus.

Q20. Why is flameproof certification necessary in coal mines? 1) For longer cable life 2) To withstand water seepage 3) To prevent methane explosion 4) To improve power factor 5) To reduce transformer losses 

✅ Answer: 3) To prevent methane explosion Solution: FLP design avoids ignition sources.

Q21. Which body conducts the final test after training? 1) IITs 2) DGMS/CEA approved institute 3) Ministry of Environment 4) State Mining Board 5) Central Pollution Control Board ✅ Answer: 2) DGMS/CEA approved institute Solution: Training & test conducted at DGMS/CEA-approved institutes.

Q22. Which one is NOT part of statutory knowledge under this training? 1) Mines Act, 1952 2) CMR 2017 3) MMR 1961 4) Petroleum Act, 1934 5) CEAR 2023 

✅ Answer: 4) Petroleum Act, 1934 Solution: Petroleum Act not included; focus is on Mines legislations + CEAR.

Q23. What is the role of earthing in mines? 1) Reduce voltage 2) Prevent overloading 3) Provide safe discharge path for fault current 4) Increase cable efficiency 5) Improve lighting 

✅ Answer: 3) Provide safe discharge path for fault current Solution: Earthing prevents shock by diverting fault current.

Q24. The training syllabus aims to reduce which type of accidents primarily? 1) Strata accidents 2) Dust explosions 3) Electrical accidents 4) Transport accidents 5) Flooding accidents 

✅ Answer: 3) Electrical accidents Solution: Entire circular is dedicated to electrical safety.

Q25. Which of the following is a practical demonstration included? 1) Rock drilling 2) Insulation resistance testing 3) Ore sampling 4) Dump slope stability 5) Ventilation survey 

✅ Answer: 2) Insulation resistance testing Solution: Candidates practice with megger & other electrical tests.