GATE MN · 2018 · MN
Question 50: Mine Development
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Question 50
MNNAT2 marksNeeds review
The following figure shows the designed blast pattern of a bench. The explosive column is charged at 18 kg/m. If the unit weight of the blasted material is 2.5 tonne/m
, the powder factor for the blast in tonne/kg is ____________. 
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2018MN
GATE MN 2018 · Paper 1
Mining Engineering · Original paper archive
- Section
- Mining Engineering
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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