- 5000
- 4000
- 3000
- 2000
- 120 dB (A)
- 130 dB (A)
- 140 dB (A)
- 115 dB (A)
- 90 dB (A)
- 85 dB (A)
Q) The Owner, shall establish and; maintain on surface close to mine entrance a Rescue Room: Provided that it may be sufficient to provide one rescue room for a number of mines belonging to the same owner where: – (a) the total number of persons ordinarily employed in below ground workings of all such mines does not exceed ________and the mines are situated radius of 35 kms. From and connected by road with the rescue room:
Solution:
5000
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