- P – wave
- S- wave
- Rayleigh wave
- Love wave
- P – wave
- S- wave
- Rayleigh wave
- Love wave
- Continuous noise
- Intermediate noise
- Repetitive noise
- Impulsive noise
Category Explosives
P- Class 1 1- Nitro compounds
Q- Class 2 2- Chlorate mixture
R- Class 3 3- Nitrate mixture
S– Class 4 4- Gun powder
- P-1, Q-2, R-4, S-3
- P-4, Q-2, R-1, S-3
- P-4, Q-3, R-1, S-2
- P-1, Q-3, R-4, S-2
- Pentaetharane tetra nitrate
- Pentaerythritol trinitrate
- Pentaerythritol tetra nitrate
- All of the above
- Cast boosters
- Detonating cord
- Non-electric blasting caps
- All of the above
- Excessive crushing of the rock
- Excessive vibration level
- Blown out shot
- Reduction in fly rocks
- Bench height
- Nature of strata to be broken
- Length of burden
- Length of NONEL
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