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  • Question

  • According to Darcy's law for flow through porous media, the velocity is proportional to


  • Options
  • A. Effective stress
  • B. hydraulic gradient
  • C. cohesion
  • D. stability number

  • Correct Answer
  • hydraulic gradient 

    • GATE Exam Questions problems

    Search Results

    • 1. Storage coefficient of a compressible confined aquifer is a function of

    • Options
    • A. specific weight of water, thickness of the aquifer, compressibility of the aquifer and that of water
    • B. permeability, thickness and compressibility of aquifer and compressibility of water
    • C. transmissibility of the aquifer and compressibility of water
    • D. transmissibility of aquifer and specific yield of aquifer
      • Discuss
    • 2. A river 5 m deep consists of a sand bed with saturated unit weight of 20 kN/m3 . vw = 9.81 kN/m3. The effective vertical stress at 5 m from the top of sand bed is

    • Options
    • A. 41 kN/m2
    • B. 51 kN/m2
    • C. 55 kN/m2
    • D. 53 kN/m2
      • Discuss
    • 3. In highway pavements emulsions are mainly used in :

    • Options
    • A. surface dressing
    • B. patching and maintenance operation
    • C. bitumen macadam
    • D. asphaltic concrete
      • Discuss
    • 4. Factor of safety adopted by IS : 800 - 1984 while arriving at the permissible stress in axial compression, is :

    • Options
    • A. 2.00
    • B. 1.00
    • C. 1.67
    • D. 1.50
      • Discuss
    • 5. The effective width of a reinforced concrete T beam flange under compression, according to IS : 456-1978, given I0 is the distance between the adjacent zero moment points, b is the breadth of the rib and D is the thickness of the flange, is

    • Options
    • A.
    • B. I0 + 6D
    • C.
    • D.
      • Discuss
    • 6. In a river, discharge is 173 m3/s; water surface slope is 1 in 6000; and stage at the gauge station is 10.0 m. If during a flood, the stage at the gauge station is same and the water surface slope is 1 in 2000, the flood discharge in m3/s, is approximately

    • Options
    • A. 371
    • B. 100
    • C. 519
    • D. 300
      • Discuss
    • 7. Generally the maximum deflection/span ratio of a steel member should not exceed

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 8. A pre-tensioned concrete member of section 200 mm x 250 mm contains tendons of area 500 mm2 at centre of gravity of the section. The prestress in the tendons is 1000 N/mm2. Assuming modular ratio as 10, the stress (N/mm2) in concrete is

    • Options
    • A. 11
    • B. 9
    • C. 7
    • D. 5
      • Discuss
    • 9. The water surface profile resulting from flow underneath the gate in the below figure is :

    • Options
    • A. H3
    • B. M1
    • C. H2
    • D. S2
      • Discuss
    • 10. A stable channel is to be designed for a discharge of Q m3 /s with silt factor f as per Lacey's method. The mean flow velocity (m/s) in the channel is obtained by

    • Options
    • A. (Qf2/140)1/6
    • B. (Qf/140)1/3
    • C. (Q2f2/140)1/6
    • D. 0.48 (Q/f)1/3
      • Discuss

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