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More Mining Engineering Questions
During uniaxial compressive testing of a rock specimen of diameter 54 mm and length 120 mm, the axial strain was found to be 6.5 × 10 -4 mm/mm. If the Poisson's ratio of the rock is 0.3, the volumetric strain of the rock specimen in mm/mm is
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Every workable entrance from the surface to the workings below ground shall be provided with a substantial . . . . . . . . which shall be kept closed and locked when there are no persons below ground.
OXD-2M instrument alarm is adjustable from . . . . . . . . of O 2 content.
What should be the duration of posting a rescue trained person in a rescue station?