- Cushion blasting
- Muffled blasting
- Pop shooting
- None of the above
- 120 dB (A)
- 130 dB (A)
- 140 dB (A)
- 115 dB (A)
- 90 dB (A)
- 85 dB (A)
To control the fly rock in the blasting Muffled blasting technique adopted
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