Q, The geoid can be best defined as A. an oblate spheroid that best approximates the shape of the earth. B. a surface over which the value of gravity is constant. C. the physical surface of the earth. D. an equipotential surface of gravity of the earth. Ans: an equipotential surface ...
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Q, The maximum and the minimum principal stresses are denoted by σ1 and σ3, respectively. The differential stress can have an absolute value greater than σ1 when A. σ1 and σ3 are both compressive. B. σ1 is compressive and σ3 is tensile. C. σ1 and σ3 are equal. D. σ1 and σ3 are both ...
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Q. A rock follows Mohr-Coulomb failure criterion. Which one of the Mohr-Coulomb failure envelopes shown below allows failure of the rock under stress state Y, but not under stress state X? (A) PP’ (B) QQ’ (C) RR’ (D) SS’ Ans: ...
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Q. The figure below shows the triple junction between three plates A, B and C. The boundary between the plates A and B is a ridge with a half-spreading rate of 4 cm/year. The A-C and B-C boundaries are collinear and orthogonal to the A-B ridge. The A-C boundary is a dextral transform fault with a ...
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Q. The supercontinent that existed in the late Mesoproterozoic to early Neoproterozoic time was (A) Kenorland. (B) Columbia. (C) Rodinia. (D) Pangaea. Ans: Rodinia.
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Q. A melanocratic porphyritic rock containing phenocrysts of biotite, with feldspar restricted to the groundmass, is called (A) trachyte. (B) dacite. (C) andesite. (D) lamprophyre. Ans: lamprophyre.
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Q. The geomorphic feature ‘horns’ are formed by (A) wind erosion. (B) river erosion. (C) wind deposition. (D) glacial erosion. Ans: glacial erosion.
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Q. Pascal second is a unit of (A) seepage force. (B) dynamic viscosity. (C) kinematic viscosity. (D) permeability. Ans: kinematic viscosity.
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Q. Which one of the following geophysical methods uses the physical property ‘Dielectric Constant’? (A) Gravity (B) Ground Penetrating Radar (C) ...
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Q. The geometrical factor for the following electrode configuration is (A) 𝜋𝑎 (B) 2𝜋𝑎 (C) 3𝜋𝑎 (D) 4𝜋𝑎 Ans: 4𝜋𝑎
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