Q281
Open questionIn roof stitching face should not be advanced more than . . . . . . . . meters from the last tensioned rope:
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Mining Engineering · all questionsMine Supports and Strata Control
Mine Supports and Strata Control
practice.
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320
Questions
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Q282
Open questionUnit of blast induced vibration is
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Q283
Open questionHard coke, classified as Grade I, coke has ash percentage less than
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Q284
Open questionWhich of the subsidiaries of coal India Limited contributed on the top ranking profit making subsiding among it subsidiaries
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Q285
Open questionThe weight of the steel rail used for lying tracks
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Q286
Open questionThe Triaxial cell can test specimens upto . . . . . . . . long.
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Q287
Open questionS.S.R. is framed for a distance upto . . . . . . . . meters of every development face.
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Q288
Open questionRoadway rippings are dirts bands, shales used as support in mines as
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Q289
Open questionMinimum thickness of lid . . . . . . . . placed over prop.
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Q290
Open questionFor fixing the cross bars holes are made in the coal pillar manually by using.
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Q291
Open questionSetting load in a hydraulic prop is
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Q292
Open questionThe capsule bolt, the capsule gel time varies from
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Q293
Open questionPovosity of material varies from
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Q294
Open questionThe goaf is supported by stowing. This stowing g can be treated as the type of support as
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Q295
Open questionThe only country in the world which converts coal into oil on commercial basis
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Q296
Open questionThe systematic timbering rules approved by the
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Q297
Open questionThe cog should not be normally errected on
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Q298
Open questionTensile strength of curved resin is
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Q299
Open questionNumber of props required to support one square meter of the roof area called
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Q300
Open questionIn triaxial cell which is cylindrical steel chamber, large enough to accommodate a specimen with a L/D ratio is nearly
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