In oldham cap lamp unit each cell of lead acid battery consists of a number of composite . . . . . . . . tubes.
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Mining Engineering · all questionsMiscellaneous in Mining
Miscellaneous in Mining
practice.
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184
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A district mine ventilated by 30 m3/sec. Quantity of air and the wg in district is 25 mm. Find the resistance of the district.
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The CO2 absorbent used in prototype breathing apparatus.
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Which of the following refrigerant is used in u/g air conditioning plant.
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In electric discharge lamps, a discharge in mercury vapour produces . . . . . . . . rays.
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If the quantity of air required below ground is increased 1.5 times, the HP required to drive the fan varies as . . . . . . . .
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The voltage of each battery of . . . . . . . . V in series in GL-60 flame safety lamp.
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The magnetic lock bolt prevent the unscrewing . . . . . . . . by construction at the top end of the oil vessel.
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In Dusty mines the dust content as per Russia Text Book . . . . . . . .
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The disease which the muscles and nerves of the eyes are affected and there is oscilation of the eye balls . . . . . . . .
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Flame safety lamp with less than . . . . . . . . candle power had resulted in . . . . . . . . among a large number of coal mines.
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Unit of illumination in S.I. units.
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The pillars are made of . . . . . . . . in flame safety lamp.
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The lime, lead, mercury comes under inorganic dust producing group of . . . . . . . .
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When the flame safety lamp is properly assembled there will be . . . . . . . . of any loose components, if it is shaken by hand.
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In heavy stone dust barrier the amount of stone dust is loaded is . . . . . . . .
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The number of persons drowned in Chasnala incident by inundation.
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The miners work in insanitory conditions may be effected by the . . . . . . . . disease.
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The lighting arrangements in depillaring areas in deg.I gassy mines, . . . . . . . . watt bulbs cluster if height of working in over 3 m.
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Q100
Open questionFor illumination in mines, the supply between two phases.
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