Coal Mining Legislation

Coal Mining Legislation – 2

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Coal Mining Legislation

Coal Mining Legislation - 2

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1. The air supplied should contain not less than --------% of oxygen.

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2. If white metal is not used in preparation of capel, the length of the tapered portion of the socket shall not be less than ____ times the diameter of the rope?

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3. The inflammable gases generated should be diluted to such an extent that the percentage of inflammable gas in the air sampled does not exceed -------% in any place in the mine.

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4. The maximum permitted height of any gallery in a seam or section shall not exceed ___

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5. During depillaring the pillar shall be split up to maximum of ___ stooks

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6. A travelling roadway shall have a height of at least _____

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7. At all places where tubs are coupled or uncoupled, the minimum clear space needed between the tubs and the one side of the road is

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8. On haulage roadways effective signaling systems are to be provided when the length of road way exceeds ___

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9. The wet bulb temperature measured with a Hygrometer in any working place should not exceed ----------------degrees centigrade.

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10. In degree-1 gassy mine if the average monthly output exceeds ___ tons, the manager shall be assisted by the ventilation officer?

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11. Tub retailers are provided at intervals of at least _____?

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12. If the average monthly output of a mine exceeds ___ tons the manager shall be assisted by an under manager

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13. When any roadway or face is in direct line with end point of haulage track where persons may be exposed to danger ___ shall be provided to present danger?

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14. If the monthly output of a mine is 18,000 tones the number of assistant or under manager required is?

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15. Manholes shall have a height of at least ____

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16. The inflammable gases generated should be diluted to such an extent that the percentage of inflammable gas does not exceed --------% in the general body of the return air of any ventilating district.

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17. On or before ___ every month sand stowing details are to be submitted to Regional Inspector

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18. No caving shall be allowed, where the thickness of the roof is less than ____

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19. In coal the height of the bench shall not exceed ____ unless permitted

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20. While preparing a white metal capel, the temperature at which the metal is poured in the socket shall not exceed ___ deg C

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21. A notice of construction of a water dam is to be submitted to.

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22. Every manhole shall be white washed both inside and outside periphery. The width to which the white washing is to be done around periphery outside shall not be less than

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23. No tree; loose stone or debris shall be allowed to remain within the distance of ___ from the edge or side of the excavation?

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24. When a white metal capel is used, the length of the tapered portion of the socket shall be not less than ___ times the diameter of the rope

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25. Every detaching bell used in connection with a safety hook shall be examined once in every ____?

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26. The manholes provided on haulage roads shall have spacing of not more than ____ between each of them

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27. The condition of provision of shaft guides need to apply for sinking shafts whose depths are not more than _____

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28. While preparing a white metal capel, the capel shall be heated to ___ deg C before the metal is poured in it

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29. The air supplied should not contain more than--------% of carbon dioxide or any noxious gases.

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30. When it is intended to construct a water dam, to control an inrush of water a notice is to be given ____ days before such construction

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31. The maximum period for which a winding rope can be used for winding is ____ years

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32. Except in koepe winding the recapping of ropes shall be done once in at least ___

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33. Where rope haulage systems are used, and where runaway switch or other effective contrivance is provided below the first stop block, the minimum distance between the switch and the stop block shall be greater than the length of ____

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34. Where the gradient is less than 1 in 6 manholes may be spaced at intervals of no more than ____?

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35. The distance between the runaway switch and stop block shall not exceed in excess of ____ meters of the length of set or train of tubs

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36. Ventilating air that shall be provided in every ventilating district shall be at a rate of not less than ------- cubic meters per minute per person employed in the largest shift

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37. For calculating the air to be provided per minute on production basis, the quantity of air to be provided shall not be less than -------- per minute per daily ton output.

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38. If the white metal is used in the capping of ropes, its melting point shall not exceed __ deg C

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39. In any mine below ground if any haulage roadway extends to a distance of more than ___ from the shaft telephonic communication shall be provided

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40. The life of the cage suspension gear is generally restricted to?

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41. No gallery in a seam or section shall exceed ___ in width?

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42. DGMS recommends that areas having cover of less than ___ should not be developed as underground gallery.

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