Home / GATE 2017-2018 / GATE Geology and Geophysics :: Practice Test Paper 1

GATE 2017-2018 :: GATE Geology and Geophysics

  1. The figures P and Q represent schematic binary phase diagrams for solid“melt and subsolidus relations in temperature (T)“composition (X) space.

    Which of the following statements is true?
  2. A.
    P shows eutectic relation and Q shows high temperature limited solid solution
    B.
    Both P and Q show high temperature limited solid solution
    C.
    Both P and Q show eutectic relation
    D.
    P shows high temperature limited solid solution and Q shows eutectic relation

  3. The figures P and Q represent schematic binary phase diagrams for solid“melt and subsolidus relations in temperature (T)“composition (X) space.

    Choose the correct statement?
  4. A.
    Solvus occurs in both P and Q
    B.
    Solvus is absent in both P and Q
    C.
    Solvus occurs in P but not in Q
    D.
    Solvus occurs in Q but not in P

  5. The following figure gives Mohr envelope for a rock and Mohr circle in a particular stress condition. Fracturing occurs when the Mohr circle touches the Mohr envelope at B.

    What type of fractures will develop in the rock?
  6. A.
    Extension fractures
    B.
    Conjugate shear fractures
    C.
    Columnar fractures
    D.
    Hybrid extension-shear fractures

  7. The following figure gives Mohr envelope for a rock and Mohr circle in a particular stress condition. Fracturing occurs when the Mohr circle touches the Mohr envelope at B.

    What is the dihedral angle?
  8. A.
    θ1
    B.
    θ2
    C.
    θ3
    D.
    θ4

  9. Copper ore deposit with significant content of molybdenum occurs in
  10. A.
    thin layers of shale
    B.
    basic-ultrabasic rocks
    C.
    volcanogenic (rhyolitic) sedimentary rocks
    D.
    andesite porphyry

  11. An example of the above type of copper deposit is
  12. A.
    Kupfersciefer, Germany
    B.
    Chuquicamata, Chile
    C.
    Kurroko, Japan
    D.
    Sudbury, Canada

  13. Microfossils are widely used in palaeoceanographic studies.
    Which of the following microfossil groups is generally found in deep sea below the Carbonate Compensation Depth?
  14. A.
    Foraminifera
    B.
    Radiolaria
    C.
    Cocoliths
    D.
    Ostracods

  15. Microfossils are widely used in palaeoceanographic studies.
    What is the test composition of the microfossil group identified above?
  16. A.
    Carbonate
    B.
    Phosphate
    C.
    Nitrate
    D.
    Siliceous

  17. Which one of the following options is the closest in meaning to the word given below? 
    Pacify
  18. A.
    Excite
    B.
    Soothe
    C.
    Deplete
    D.
    Tire

  19. Choose the most appropriate pair of words from the options given below to complete the following sentence: 
    The high level of ___ of the questions in the test was ___ by an increase in the period of time allotted for answering them.
  20. A.
    difficulty, compensated
    B.
    exactitude, magnified
    C.
    aptitude, decreased
    D.
    attitude, mitigated