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  • Question

  • The removal of dissolved organic matter occurs in


  • Options
  • A. slow sand filters
  • B. trickling filters
  • C. rapid sand filters
  • D. dual media filters

  • Correct Answer
  • trickling filters 

    • GATE Exam Questions problems

    Search Results

    • 1. The proposed dam shown in the below figure is 90 m long and coefficient of permeability of the soil is 0.0013 mm/second. The quantity of water (m3) that will be lost per day, by seepage is (rounded to the nearest number):

    • Options
    • A. 55
    • B. 57
    • C. 59
    • D. 61
      • Discuss
    • 2. The value of the camber recommended for cement concrete roads in areas of heavy rainfall is :

    • Options
    • A. 1 in 25
    • B. 1 in 33
    • C. 1 in 40
    • D. 1 in 50
      • Discuss
    • 3. The Bowen ratio is defined as :

    • Options
    • A. Ratio of heat and vapour diffusivities.
    • B. Proportionality constant between vapour heat flux and sensible heat flux.
    • C. Ratio of actual evapotranspiration and potential evapotranspiration.
    • D. Proportionality constant between heat energy used up in evaporation and the bulk radiation from a water body.
      • Discuss
    • 4. For the strip footing on a saturated clay, for the given failure surface as shown in the below figure, the bearing capacity equation takes the form : (where Cu - undrained shear strength ?u - angle of internal friction B - width of strip footing qc - ultimate bearing capacity of soil)

    • Options
    • A. 5.7 Cu
    • B. 5.14 Cu
    • C. 4? Cu
    • D. 2? Cu
      • Discuss
    • 5. The order or the flexibility matrix for a structure is,

    • Options
    • A. equal to the number of redundant forces
    • B. more than the number of redundant forces
    • C. less than the number of redundant forces
    • D. equal to the number of redundant forces plus three
      • Discuss
    • 6. Excessive fluoride in drinking water causes

    • Options
    • A. Alzheimer's disease
    • B. Mottling of teeth and embrittlement of bones
    • C. Methemoglobinemia
    • D. Skin cancer
      • Discuss
    • 7. A 1 : 30 model of an ogee spillway crest records an acceleration of 1.3 m/s2 at a certain location. The homologous value of the acceleration in the prototype in m/s2 , is

    • Options
    • A. 0.043
    • B. 0.237
    • C. 1.300
    • D. 7.120
      • Discuss
    • 8. A reinforced concrete wall carrying vertical loads is generally designed as per recommendations given for columns. The ratio of minimum reinforcements in the vertical and horizontal directions is

    • Options
    • A. 2 : 1
    • B. 5 : 3
    • C. 1 : 1
    • D. 3 : 5
      • Discuss
    • 9. The degree of static indeterminacy of the rigid frame having two internal hinges as shown in the figure below, is

    • Options
    • A. 8
    • B. 7
    • C. 6
    • D. 5
      • Discuss
    • 10. Water flows at a depth of 0.1 m with a velocity of 6 m/s in a rectangular channel. The alternate dpeth is

    • Options
    • A. 0.30 m
    • B. 0.40 m
    • C. 0.86 m
    • D. 0.81 m
      • Discuss

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