Mining Engineering > GATE 2020 > Rock Mechanics
A rock sample has coefficient of thermal diffusivity 1.282×10-6 m2/s. specific heat 900 J/(kg°C) and density 2600 kg/m3. The coefficient of thermal conductivity of the rock sample in W/(m°C) is _________. (round off to 1 decimal place).
Correct : 2.9
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Rock strata has unit weight of 25 kN/m3 and Poisson's ratio 1/3. At a depth of 200 m, the horizontal stress in MPa is ________. (round off to 1 decimal place).
Rock strata has unit weight of 25 kN/m3 and Poisson's ratio 1/3. At a depth of 200 m, the horizontal stress in MPa is ________. (round off to 1 decimal place).
Rock strata has unit weight of 25 kN/m3 and Poisson's ratio 1/3. At a depth of 200 m, the horizontal stress in MPa is ________. (round off to 1 decimal place).
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