Q401
Open questionBy using of air leg relieves the operation of . . . . . . . . . involved in holding drill.
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Mining Engineering · all questionsDrilling and Blasting
Drilling and Blasting
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Q402
Open questionA roadway in the ore body which follows strike.
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Q403
Open questionThe VOD of primer in m/sec in m/sec
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Q404
Open questionIn metal mining terminology development of mine means formation of . . . . . . . .
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Q405
Open questionWhat do you understand by power of ventilation.
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Q406
Open questionLower inflammability of coal dust is . . . . . . . .
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Q407
Open questionMaximum velocities of ventilating air at working faces in development/depillaring
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Q408
Open questionWhat will be the RF of 1.8 cm on the maps represent 9 km.
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Q409
Open questionIn degree II gassy mines the rate of emission of gas m3/t of coal raised is . . . . . . . .
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Q410
Open questionThe w.g developed by the axial flow fan . . . . . . . . in cm.
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Q411
Open questionIf the gas emission in a mine is very high as may some. times occur in very deep mines, it is a safe practice to substitute electric power supply by . . . . . . . .
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Q412
Open questionHeat produced by human being through the process of . . . . . . . .
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Q413
Open questionThe weight of self contained breathing apparatus of proto marks V . . . . . . . . of 2 hour duration in kg.
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Q414
Open questionThe quantity survey can be made in gassy mines of III degree once in every . . . . . . . . days.
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Q415
Open questionFace pump h.p varies from
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Q416
Open questionSpraying the surface of stoping with liquid cement sand mixture ratio 3 : 1 called
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Q417
Open questionIdentify the odd out if the lot.
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Q418
Open questionSaylor's classification is based on . . . . . . . .
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Q419
Open questionTaking the air to the lower point of the district and allow to travel to higher levels to ventilate the district or faces before goes to return . . . . . . . .
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Q420
Open questionWhich explosive is blasted by safety fuse.
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