31. Nitrous fumes are formed during
32. MEMACS-I will detect methane in the range . . . . . . . . in the general body of air.
33. Exhaust fan located at the mouth of . . . . . . . . shaft.
34. Methane telemonitory system consists . . . . . . . . sets of equipment.
35. An Indian worker may continue to work reasonably well in u/g atmosphere where the wet bulb temperature is nearly about . . . . . . . .°C.
36. D6 methanometer, suitable for checking gas accumulation with measurement ranging from . . . . . . . . by volume.
37. The smell of SO2
38. The increase of temperature with depth at a definite rate called . . . . . . . .
39. U.C shaft is used for sucking . . . . . . . . air.
40. The main mechanical ventilator deals with all the air in mine has to be situated on . . . . . . . .
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