Q781
Open questionIn the centrifugal fan re-entry of the discharged air is prevented by . . . . . . . .
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Mining Engineering · all questionsDrilling and Blasting
Drilling and Blasting
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Q782
Open questionThe pressure actually developed by the fan and expended on over comming the mine called . . . . . . . .
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Q783
Open questionWhen wet bulb temperature and dry bulb temperature are some, what is the relative humidity.
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Q784
Open questionCaustite removes . . . . . . . .
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Q785
Open questionIn solid blasting practice which of the following type of initiation is preferred?
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Q786
Open questionDeflagration means
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Q787
Open questionWhich type of air lock provided in Chinakure mine.
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Q788
Open questionWhich drivage is costlier and not quicker
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Q789
Open questionSmoke helmet provided with a flexible hose pipe of length . . . . . . . . and dia of hose . . . . . . . .
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Q790
Open questionExhaust fan requires air lock at . . . . . . . . shaft.
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Q791
Open questionWhat happens if more than one auxiliary fan employed in one ventilation district.
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Q792
Open questionIt is a process of giving sufficiently voilent shock to the explosive charge to bring almost rearrangement of atoms called . . . . . . . .
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Q793
Open questionAt Sudhamdih colliery the main coal winding shaft finished diameter is . . . . . . . .
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Q794
Open questionThe lowest temperature at which the fine dry coal dust can be ignited and can cause the flame to travel through out the dust air mixture is . . . . . . . .
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Q795
Open questionThe reducing valve in self contained breathing apparatus, reduces the pressure supplied to the wearer and ensures of . . . . . . . . O2/minutes.
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Q796
Open questionFirst conference of safety in mines held in the year.
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Q797
Open questionWhen stemming is insufficient then there is chance of
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Q798
Open questionPower output of the fan called . . . . . . . .
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Q799
Open questionThe corrugated hose pipe connected to hose masks forms an air . . . . . . . .
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Q800
Open questionCO2 absorbent known as . . . . . . . .
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