61. The term �rockburst� refers to:
62. What is the significance of Poisson�s ratio in rock mechanics?
63. Which method is commonly used to test tensile strength of rocks?
64. Which rock property affects wave velocity the most in seismic tests?
65. Which rock type generally exhibits plastic deformation under high confining pressure?
66. The term �RQD� is used to measure:
67. Which of the following increases with rock weathering?
68. A common rock support method in underground excavation is:
69. The rebound number in Schmidt hammer test gives an estimate of:
70. What is the main purpose of using shotcrete in tunneling?
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