Q381
Open questionIf a person affected by CO2, recovery done by . . . . . . . .
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Mining Engineering · all questionsMine Ventilation
Mine Ventilation
practice.
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440
Questions
20/22
Page
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Q382
Open questionThe weight of GL-60 lamp with fuel is . . . . . . . . in kg.
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Q383
Open questionIn a hot day the relative humidity will be nearly
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Q384
Open questionCO is soluable 100 vol. of water desolving 2.3 vols. of gas at . . . . . . . .°C.
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Q385
Open questionInclined water gauge can be read upto . . . . . . . . mm and in same cases even upto . . . . . . . . mm depending upon scale graduation.
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Q386
Open questionShelf life of the MSA co detector tube is . . . . . . . .
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Q387
Open questionDrykata for sedimentary workers.
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Q388
Open questionThe S.I unit of water vapour pressure in air . . . . . . . .
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Q389
Open questionThe velocity of air at working face at . . . . . . . . is reasonable.
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Q390
Open questionThe methane drainage system used to shut off when % of methane falls below.
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Q391
Open questionThe static pressure, velocity pressure or total pressure can be measured by . . . . . . . .
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Q392
Open questionIn metric units the value of standard atmopsheric pressure is nearly . . . . . . . . kgf/cm2.
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Q393
Open questionMSA is a marketing a methane monitor called
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Q394
Open questionForcing fan located at the mouth of . . . . . . . . shaft.
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Q395
Open questionStand by ventilation is required . . . . . . . . as per dams Gr 42 of 1972.
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Q396
Open questionThe percentage of Nitrogen present in mine air by volume.
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Q397
Open questionCO2 produced in the mine due to
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Q398
Open questionThe cooling effect of the air depends not only on the
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Q399
Open questionChemical detector tubes which are sealed at both ends can be stored for . . . . . . . . years.
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Q400
Open questionBlack damp partially cleared away by sprikling
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