Indian Minerology

Mine Machinery MCQ Questions - Part 04 ⚙️ Mine Machinery MCQ Questions - Part 04 46. The primary purpose of haulage loaders in mines is: A. Load, carry and dump materials B. Provide ventilation C. Cut coal faces D. Monitor machinery Show Answer Answer: A. Load, carry and dump materials 47. A dragline excavator is used mainly for: A. Surface excavation B. Underground cutting C. Transporting materials D. Water pumping Show Answer Answer: A. Surface excavation 48. DGMS safety regulation mandates that all electrical mining machines must be: A. Explosion proof B. Flameproof C. Both A and B D. Waterproof Show Answer Answer: C. Both A and B 49. The main power supply for underground machinery is generally: A. Diesel engine B. Electric supply through trailing cables C. Solar power D. Compressed air Show ...

Mine Machinery MCQ Questions - Part 05 (Final) ⚙️ Mine Machinery MCQ Questions - Part 05 (Final) 61. DGMS mandates inspection of mining machinery at least: A. Monthly B. Quarterly C. Half yearly D. Annually Show Answer Answer: B. Quarterly 62. Electrical equipment used in mines must be: A. Explosion proof B. Flameproof C. Both A and B D. Standard industrial type Show Answer Answer: C. Both A and B 63. Spares inventory for mining machinery should be: A. Minimal to reduce cost B. Adequate to prevent downtime C. Not maintained regularly D. Provided by manufacturer only Show Answer Answer: B. Adequate to prevent downtime 64. Periodic training for machinery operators is: A. Optional B. Recommended but not mandatory C. Mandatory as per DGMS D. Not needed Show Answer Answer: C. Mandatory as per DGMS ...

Mine Machinery MCQ Questions - Part 03 🛠️ Mine Machinery MCQ Questions - Part 03 31. Drilling machines used in mines are mainly of the type: A. Rotary drilling B. Percussion drilling C. Both A and B D. None Show Answer Answer: C. Both A and B 32. Loaders are mainly used for: A. Excavating and transporting ore B. Ventilation C. Drilling D. Spraying water Show Answer Answer: A. Excavating and transporting ore 33. A dumper used in mines must conform to: A. DGMS safety standards B. IS standards C. Both A and B D. No standards required Show Answer Answer: C. Both A and B 34. The key maintenance aspect for underground drilling machines is: A. Lubrication B. Cutting bit sharpening C. Proper coolant levels D. All of the above Show Answer Answer: D. All of the above 35. DGMS Regulation for electric...

Mine Machinery MCQ Questions - Part 02 ⚙️ Mine Machinery MCQ Questions - Part 02 16. The main function of conveyors in mines is: A. Transport materials continuously B. Provide ventilation C. Drain water D. Support roof Show Answer Answer: A. Transport materials continuously 17. The most common type of conveyor used in underground mines is: A. Belt conveyor B. Chain conveyor C. Screw conveyor D. Roller conveyor Show Answer Answer: A. Belt conveyor 18. Mine locomotives are mainly powered by: A. Steam engines B. Compressed air or battery electric C. Diesel only D. Manual power Show Answer Answer: B. Compressed air or battery electric 19. The safety feature in mine conveyors to prevent overloading is: A. Trip switch B. Overload clutch C. Belt scale D. Safety door Show Answer Answer: B. Overload clutc...

Mine Machinery MCQ Questions – Part 01 ⚙️ Mine Machinery MCQ Questions – Part 01 1. The main purpose of mine machinery is: A. Decoration B. Mechanize and increase production efficiency C. Reduce workers D. None Show Answer Answer: B. Mechanize and increase production efficiency 2. Track haulage in underground mines uses: A. Ropes & drums B.  Conveyors C. Pipe systems D.  Dumpers Show Answer Answer: A. Ropes & drums 3. Endless rope haulage is suitable for: A. Flat roads B. Long & steep inclined roads C. Short level roads D. Open pits Show Answer Answer: B. Long & steep inclined roads 4. Main component of rope haulage system: A. Drum & Brake B. Conveyor belt C. Water pump D. None Show Answer Answer: A. Drum & Brake 5. For smooth running of haulage, the gradient should not exceed: A. 1 in 8 B. 1 in 10 C. 1 in 12 D. 1 in 20 Show Answer Answer: B. 1 in 10 6. The device used to disconnect haulage...