Q181
Open questionThe main purpose of lea recorder is to calculate sand bunker's . . . . . . . .
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Mining Engineering · all questionsCoal Mining
Coal Mining
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Q182
Open questionThe discharge of sand given by the formulae Qs =
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Q183
Open questionIn mechanical stowing, the material has to be deflected on the thrower belt by deflection plates called as . . . . . . . . which drops material into . . . . . . . .
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Q184
Open questionThe method of sinking through alternate loose and hard strata upto 60 m
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Q185
Open questionNomographs are used for in under ground mining.
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Q186
Open questionThe charge per hole in BG method.
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Q187
Open questionWidth of thrower belt . . . . . . . . in mechanical stowing.
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Q188
Open questionCaisson methods are commonly adopted for construction of foundation for
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Q189
Open questionSaw toothed drill bits are suitable only for drilling through
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Q190
Open questionDepillaring below water logged area should be . . . . . . . .
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Q191
Open questionIn double tube core barrel which tube holds core
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Q192
Open questionRocks formed by cooling of molten material
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Q193
Open questionThe type of detonators employed for blasting in shaft sinking
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Q194
Open questionDeccan traps spread of over more than 4 Km2 in peninsular India, example of
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Q195
Open questionPheumatic caisson method can not be used for depths of more than . . . . . . . .
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Q196
Open questionThe shape of the pillar in steep seams for haulage and loading and in flat and inclined seams for adoption of high capacity machinary like shuttle cars and locomotives is
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Q197
Open questionStress due to weight of strata.
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Q198
Open questionThe type of technology employed in sinking of shaft by drill shafts
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Q199
Open questionBore hole deviation provides
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Q200
Open questionCoal mines have added problem of lighting due to
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