Geology and Geophysics
GATE GG-1 kind:question PYQs
Build your understanding with focused practice from past exam papers.
Questions 251–260 of 650. Imported answers require independent review unless marked reviewed.
Question 56
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Which of the following stratigraphic successions is/are arranged in CORRECT chronological order?
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Which of the following options present(s) simultaneous crystallization of two minerals in the given feature(s)?
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Which of the following textures suggest(s) post-kinematic growth of the mentioned mineral?
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In the schematic cross-section of a hill, a planar discontinuity intersects a planar slope face. Using kinematic analysis, which of the following conditions favor(s) plane failure to occur?
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In a drainage basin, the number of the 1ˢᵗ, 2ⁿᵈ, 3ʳᵈ, 4ᵗʰ and 5ᵗʰ order streams are 240, 40, 8, 2 and 1, respectively. The average of all calculated bifurcation ratios is __________. [round off to 2 decimal places]
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A sandstone follows Mohr-Coulomb failure criterion. If the uniaxial compressive strength and the angle of the internal friction of the sandstone are 7 MPa and 30°, respectively, the calculated cohesion of the rock is ______________ MPa. [round off to 2 decimal places]
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At a certain depth in the crust, the maximum and minimum principal compressive stresses are 150 MPa and 75 MPa, respectively, which lead to normal faulting. If the average density of the crust is 2700 kg/m³, the crustal depth of fracture initiation according to Anderson’s theory of faulting is ______________ km. (
m/s²) [round off to one decimal place]Log in to check the answer
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A cylindrical soil sample of 10 cm diameter is tested in a constant-head permeameter. A volume of 250 cm³ of water is collected in 5 minutes when the constant-head difference between tapping points 15 cm apart is 5 cm. Considering Darcy flow, the absolute value of coefficient of permeability in cm/s is __________. (
) [round off to 3 decimal places]Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 64
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The minimum anion-to-cation radius ratio at which a 3-fold coordination becomes possible is __________. [round off to 2 decimal places]
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The mole fraction of jadeite in the pyroxene of composition (Ca₀.₆₆Na₀.₃₃Fe²⁺₀.₁₂₁Fe³⁺₀.₁₂₅Mg₀.₅₄₆Al₀.₂₀₈)Si₂O₆ is __________. [round off to 3 decimal places]
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