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51
The height of insitu piller shall not exceed in manual opencast mining
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Answer: Option D
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52
The output per month during the proceeding financial year of the, total out put from all workings within the specified mine boundries called
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Answer: Option D
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53
No material shall be placed or dumped within . . . . . . . . meters from either side of track of rails.
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Answer: Option C
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54
Manhole height shall not be less than . . . . . . . . m.
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Answer: Option C
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55
When the percentage of inflammable gas, in the general body of air at any place in working more than . . . . . . . . in second degree gassy mines.
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Answer: Option B
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56
Where white metal used in capping, the tapered portion of the socket shall not be less than . . . . . . . . times the diameter of the rope for the rope size upto . . . . . . . .
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Answer: Option A
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57
The coal mines regulation extend to the . . . . . . . . India.
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Answer: Option C
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58
Which includes coal, stone, debris or any other material
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Answer: Option B
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59
Practical experience of candidates require for appearing first class manager certificates for degree in mining engineering holders . . . . . . . . years.
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Answer: Option D
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60
Any excavation made or being made in a mine for search of or obtaining coal called
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Answer: Option C
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