- 100
- 90
- 80
- 6
- 120 dB (A)
- 130 dB (A)
- 140 dB (A)
- 115 dB (A)
- 90 dB (A)
- 85 dB (A)
Q) In Float or other similar deposit worked by manually on a sloping face, the face shall be benched and sides sloped at an angle of not more than ____ degrees from the horizontal axis in opencast mine workings.
Solution:
In Float or other similar deposit worked by manually on a sloping face, the face shall be benched and sides sloped at an angle of not more than 6 degrees from the horizontal axis in opencast mine workings.
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