41. No working shall be extended further than a specified distance, from the boundaries of any mine the specified distance . . . . . . . .
42. The raises by long hole drilling can drive raises upto the limit of . . . . . . . . m.
43. Which of the following method of metal mining is only applicable to coal mines.
44. The following is not considered under unsupported class of u/g mining method for extraction.
45. Vertically or steeply inclined openings is suitable for . . . . . . . .
46. Distance between blasting and loading point is termed as . . . . . . . .
47. The method of drop raising first implimented in India in which mine . . . . . . . .
48. If the roof is moderate strength, artificially supported; tabular arid steep deposit the method employed is . . . . . . . .
49. Which of the following method of mining is only applicable to metal mining.
50. In ring drilling by drifters, we normallyuse the drill bits having dia in mm.
Read More Section(Metal Mining)
Each Section contains maximum 100 MCQs question on Metal Mining. To get more questions visit other sections.