Home / GATE 2017-2018 / GATE Mining Engineering :: Practice Test Paper 1

GATE 2017-2018 :: GATE Mining Engineering

  1. A 20 m steel tape used in a mine survey is found to be 20 cm short when compared with a standard tape. If the measured volume of a dump using the tape is 4000 m3, its actual volume in m3 is
  2. A.
    3881
    B.
    3902
    C.
    3920
    D.
    4121

  3. A mine worker inhales normal air; whereas, the exhaled air contains 16.65% O2 and 3.83% CO2. The respiratory quotient of breathing for the worker is
  4. A.
    0.23
    B.
    0.89
    C.
    0.99
    D.
    1.13

  5. The boundary of a mine is plotted on a scale of 1:2000. If a planimeter measures the plotted area as 58 cm2, the actual mine area in m2 is
  6. A.
    5800
    B.
    11600
    C.
    23200
    D.
    29000

  7. For a shrinkage stope the following data values are given
    Insitu tonnage                   9000 tonne
    Insitu grade                       5.2 g/tonne
    Average grade of waste  1.4 g/tonne
    Loss of ore in the stope  10%
    Dilution                              20%
    The grade at the mill-head in g/tonne is ________
  8. A.
    4.5 to 4.518
    B.
    4.2 to 4.215
    C.
    6.3 to 6.344
    D.
    1.3 to 1.367

  9. In an experiment to determine specific gravity of a soil sample, the following data is obtained:
    Mass of empty pycnometer                                                   20.4 g
    Mass of pycnometer with soil sample                                 51.6 g
    Mass of pycnometer with soil sample filled with water   88.6 g
    Mass of pycnometer filled with water                                 70.4 g
    The specific gravity of the sample is __________
  10. A.
    1.25 to 1.35
    B.
    1.45 to 1.55
    C.
    3.56 to 3.66
    D.
    2.35 to 2.45

  11. A cylindrical rock specimen of diameter 54 mm has Young's modulus of 68.97 GPa and Poisson's ratio of 0.35. The rock specimen fails in uniaxial compression at a lateral strain of 0.01%. The axial load at failure in kN is __________
  12. A.
    34.6 to 35.3
    B.
    44.8 to 45.5
    C.
    54.7 to 55.3
    D.
    12.6 to 13.3

  13. An open belt drive connects two pulleys on parallel shafts that are 3.6 m apart as shown in the figure. The diameters of the pulleys are 2.4 m and 1.6 m. The angle of contact on the smaller pulley in degrees is __________

  14. A.
    123 to 126
    B.
    166 to 169
    C.
    276 to 279
    D.
    534 to 537

  15. A two tonne mine car is released from the top of an incline at a height of 3 m as shown in the figure. The mine car travels 45 m along the inclined track and another 85 m along the horizontal track before coming to rest.

    The specific rolling resistance of the car in N/tonne is ____________
  16. A.
    124 to 130
    B.
    543 to 549
    C.
    225 to 231
    D.
    287 to 293

  17. A surface miner with 2.0 m cutting drum width excavates coal in windrowing mode from a bench with effective face length 200 m. The cutting speed of the surface miner is 10 m/min and the cutting depth 25 cm. The density of coal is 1.4 tonne/m3. If the average turning time of the machine at the face end is 5 min, the rate of production in tonne/hour becomes ____________
  18. A.
    654 to 656
    B.
    335 to 337
    C.
    267 to 269
    D.
    483 to 485

  19. A core sample of a rock, having diameter 54 mm and length 108 mm, is subjected to axial loading. If the axial strain and Poisson's ratio are 2000 * 10-6 and 0.28 respectively, the value of volumetric strain , represented in micro-strain is ___________
  20. A.
    0.000835 to 0.000845
    B.
    0.000855 to 0.000865
    C.
    0.000865 to 0.000875
    D.
    0.000875 to 0.000885