Coal Mining Legislation – 16

1. In every travelling roadway samples shall be taken at intervals not exceeding --------.

2. Representative samples of dust from every zone shall be collected once in ___on rotation

3. A place in a mine is considered “Naturally wet throughout” if the coal dust in the mine is having moisture not less than___ percent by weight.

4. Samples of dust collected from floor are to be collected to a depth not exceeding____.

5. The entrance (Mouth) of the mine shall be so situated that it is ___ meters above the HFL

6. During strip sampling method the width of strips shall not be more than___ and intervals of strips shall not be more than

7. When a working approaches any goaf or disused workings within 30 meters a borehole has to be drilled to a distance not less than___ meters in advance of the working.

8. When any working is extended within___ meters of any goaf or disused workings a borehole shall be drilled for checking accumulation of inflammable or noxious gases.

9. The sample reduced by coning and quartering shall be collected and its weight shall not be less than ----------

10. Samples of dust collected from roof and sides are to be collected to a depth not exceeding ___.

11. Representative samples from a zone shall not be collected in ____hours of treating operations.

12. The samples collected and prepared are to be sent to laboratory within__.

13. During the rainy season the protective measures for preventing flooding shall be checked once in ___

14. The zones and sections, with their numbers and code-letters, shall be clearly marked on a sampling plan on a scale having of representative factor of not less than --------.

15. During non-rainy season inspection of protective measures from inundation shall be checked at least once in every--------

16. When it is intended to reopen an isolated or sealed off or water flooded mine, to deal with a fire or spontaneous heating, a notice shall be given to inspector not less than ___ days before.

17. When spot sampling is done in a zone treated with water, the samples collected shall gave an interval of ___ meters collected in a zigzag path.

18. No workings shall be made in any mine vertically below any part of any river, canal, lake, tank or other surface reservoir or any spot lying within a horizontal distance of ---meters from either bank of a river etc

19. where it is intended to carry out any exploratory work in an underground mine, the minimum number of persons that are required to be in the team is