Home / GATE 2017-2018 / GATE Geology and Geophysics :: Practice Test Paper 2

GATE 2017-2018 :: GATE Geology and Geophysics

  1. Two bodies made up of same material with different dimensions have
  2. A.
    same resistances and resistivities
    B.
    same resistivities but different resistances
    C.
    same resistances but different resistivities
    D.
    different resistances and resistivities

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  3. The type of wave that arrives first at a station from an earthquake hypocenter is
  4. A.
    P-wave
    B.
    S-wave
    C.
    Rayleigh wave
    D.
    Love wave

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  5. If a radioactive isotope has a decay constant of 1.55 * 10-10 year-1, its half-life (in years) would be
  6. A.
    4.57 * 109
    B.
    4.47 * 109
    C.
    4.57 * 1010
    D.
    4.47 * 1010

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  7. Which of the following physical properties of rocks has the widest range of variation?
  8. A.
    Magnetic permeability
    B.
    Dielectric permittivity
    C.
    Seismic velocity
    D.
    Electrical resistivity

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  9. Which of the following is NOT an inverse square law?
  10. A.
    Newton's law of gravitation
    B.
    Coulomb's law of electrostatics
    C.
    Coulomb's law of magnetostatics
    D.
    Hooke's law

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  11. A type of unconformity characterized by the occurrence of sedimentary rocks on igneous/metamorphic rocks is known as
  12. A.
    angular unconformity
    B.
    nonconformity
    C.
    paraconformity
    D.
    disconformity

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  13. For seismic S-wave velocity, V, the rigidity modulus, μ, is proportional to
  14. A.
    √V
    B.
    V
    C.
    V2
    D.
    V3

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  15. An active trench is present in the vicinity of
  16. A.
    Andaman & Nicobar Islands
    B.
    Gulf of Cambay
    C.
    Lakshadweep
    D.
    Krishna-Godavari delta

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  17. In a homogeneous anisotropic medium, the physical property varies
  18. A.
    with position but not with direction
    B.
    with both position and direction
    C.
    with direction but not with position
    D.
    neither with position nor with direction

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  19. Which one of the following stable isotopic ratios is used for estimation of palaeo-temperature of seawater?
  20. A.
    13C/12C
    B.
    18O/16O
    C.
    87S/86Sr
    D.
    15N/14N

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