GATE MN · 2018 · MN
Question 47: Ground Control
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Question 47
MNNAT2 marksNeeds review
The immediate roof of a mine is supported by bolts of length 1.5 m, arranged in 1.2 m x 1.2 m grid pattern. If the unit weight of roof rock is 2.25 tonne/m
and load carrying capacity of each bolt is 7.5 tonne, the factor of safety of the support system is ________________.Log in to check the answer
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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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