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41
Why galleries are sometimes staggered?
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Answer & Solution
Answer: Option B
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42
In every mine in which a mechanical ventilator in use, the quantity of air shall, once atleast in every . . . . . . . . days, be measured.
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Answer: Option A
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43
Determination of percentage of inflammable gas shall be made by a . . . . . . . . person by means of an Apparatus approved by CI of mins.
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Answer: Option D
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44
Coal gallery of the seam height should not exceed . . . . . . . . meters.
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Answer: Option B
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45
Identify one of the following conditions which does attract the provision of prohibiting the use of any rope for winding
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Answer: Option B
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46
Samples of dust collected to a depth not exceeding . . . . . . . . millimeters on the roof and sides and to a depth not exceeding . . . . . . . . millimeters on floor.
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Answer: Option D
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47
In which form does the owner, agent or manager keep the record of leave with wages of employee?
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Answer: Option D
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