What do you understand by bulk density?
[3 marks]Discuss the application of rock mechanics in mining.
[4 marks]What do you mean by Compressive strength of rock? Explain the determination of uni-axial compressive strength of rock with one example.
[7 marks]Write the different ways of roof testing.
[3 marks]How to determine porosity of rock sample? Explain with one example.
[4 marks]Discuss rock mass rating (RMR) & rock structure rating (RSR) system in detail.
[7 marks]Discuss in detail the theory of reinforcement of rock mass by rock bolting.
[7 marks]Define Ideally Plastic, perfectly Plastic and Elastic Plastic materials.
[3 marks]Explain moisture content of rock with one example.
[4 marks]What is Rock Quality Designation Index (RQD)? How it is determined?
[7 marks]What do you understand by permeability?
[3 marks]Explain Modulus of elasticity and Poisson’s ratio.
[4 marks]Describe the tests or methods to determine the Permeability of rock sample.
[7 marks]Write the mohr’s scale of hardness.
[3 marks]Discuss the effect of joints and fracture on mechanical properties of rocks.
[4 marks]Discuss the Griffith’s theory of fracture in rock mass.
[7 marks]Explain the creep behaviour of rock.
[3 marks]What is Brazilian test? Explain with one example.
[4 marks]Explain hydraulic fracturing method in detail.
[7 marks]What do you understand by pre-mining state of stress? Page 1 of
[2 marks]Explain different types of failure in rock.
[4 marks]Describe the dynamic properties of rock in detail.
[7 marks]With the help of neat diagram, explain stress-strain curve.
[3 marks]Explain Mohr’s and Coulomb theories of rock failure.
[4 marks]Name the methods of determining of shear strength of rock? Explain any one method in detail. Page 2 of
[2 marks]