Q141
Open questionInhalation of iron dust causes the disease called . . . . . . . .
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Mining Engineering · all questionsMiscellaneous in Mining
Miscellaneous in Mining
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Q142
Open questionBulb of lead acid battery rated at . . . . . . . . V . . . . . . . . amps giving light output of . . . . . . . . lumens.
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Q143
Open questionRelighting of lamp becomes trouble some in the following cases.
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Q144
Open questionIn a mine big roof fall taken place in main in take air way, fan drift water gauge.
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Q145
Open questionCarbide lamps can withstand an air velocity of . . . . . . . . m/sec.
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Q146
Open questionA meter candle is also termed as . . . . . . . .
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Q147
Open questionThe three parallel road ways have resistance of 9, 16, 25 ketomings respectively. Find the total resistance of the mine.
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Q148
Open questionWeight of methalarm . . . . . . . . g.
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Q149
Open questionIn water gas explosion, the two highly explosive gases that are invovled are . . . . . . . .
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Q150
Open questionSafety torches the glass is protected by a grill of . . . . . . . . mm wide brass plates in the mouth piece.
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Q151
Open questionLuminous efficiency of flurescent bulb is . . . . . . . .
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Q152
Open questionThe mesh of wire gauze is . . . . . . . .
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Q153
Open questionThe quantity of dust contained in it is stated by . . . . . . . . ways.
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Q154
Open questionMiner suffering from nystagmus cannot see the . . . . . . . . of in flame safety lamp.
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Q155
Open questionWorking life of alkaline battery is . . . . . . . . years.
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Q156
Open questionThe diseases which comes from coal dust breathing.
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Q157
Open questionAn SPL of 92 dBA was measured 15 m away from source. If the distance was 60 m; the sound measured would be
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Q158
Open questionRescue team consists of . . . . . . . .
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Q159
Open questionCommon type of dust used for stone dusting in mines.
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Q160
Open questionIn very dusty mines the dust content . . . . . . . . as per Russian Text Book.
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