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DGMS METAL MMLGS JUNE-2025 EXAM MEMORY BASED QUESTIONS

DGMS METAL MINE MANAGEMENT LEGISLATION & GENERAL SAFETY JUNE-2025 EXAM MEMORY BASED QUESTIONS

1.If the NPV (Net Present Value) of an investment proposal is positive, what conclusion can be drawn?

2. According to the Central Pollution Control Board, which particular particle size is responsible for causing the greatest harm to human health?

3. Explain the sewage treatment process involving algal–bacterial symbiosis.

4. A clear over-run space of not less than 7.5 m is kept below the lowest place of loading, if the shaft or winze is of what type?

5. Define salvage value of equipment.

6. Match the following illumination standards:
  I. First-aid room
  II. Haulage engine room / Workshop
  III. Man-pass & Ladder-way
  IV. Loading & Unloading point

7. As per DGMS circular, what are the warning level and danger level limits of sound in mines?

8. The permissible respirable dust level in mines has been brought down in case of what percentage of free silica content?

10. As per DGMS, many accidents have occurred due to lack of safety-belt-wearing awareness. What step should DGMS take regarding safety-belt awareness or training?

11. When shaft sinking is in progress, the bucket or other means of conveyance shall have a sufficient number of guides extended to within how many metres of the bottom?

12. Examination of winding equipment—every winding rope must be examined at least once every 30 days by passing the rope at a speed not exceeding how much?

13. For a travelling roadway in mines: What should be its minimum height?

14. Workmen Inspector training consists of how many lectures and what duration per lecture?

15. If a person is already working in one mine, under what condition is he not allowed to work in another mine during the same period?