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  • Question

  • The microbial quality of treated piped water supplies is monitored by


  • Options
  • A. Microscopic examination
  • B. Plate count of heterotrophic bacteria
  • C. Coliform MPN test
  • D. Identification of all pathogens

  • Correct Answer
  • Coliform MPN test 

    • GATE Exam Questions problems

    Search Results

    • 1. The depth of tension crack in a soft clay (?u = 0) is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 2. The ruling minimum radius of horizontal curve of a national highway in plain terrain for ruling design speed of 100 km/hour with e = 0.07 and f = 0.15 is close to

    • Options
    • A. 250 m
    • B. 360 m
    • C. 36 m
    • D. 300 m
      • Discuss
    • 3. In an iceberg, 15% of the volume projects above the sea surface. If the specific weight of sea water is 10.5 kN/m3 , the specific weight of iceberg ir kN/m3 is

    • Options
    • A. 12.52
    • B. 9.81
    • C. 8.93
    • D. 7.83
      • Discuss
    • 4. The characteristic strength of concrete is defined as that compressive strength below which not more than

    • Options
    • A. 10% of results fall
    • B. 5% of results fall
    • C. 2% of results fall
    • D. None of the above.
      • Discuss
    • 5. A water treatment plant is required to process 28800 m3/d of raw water (density = 1000 kg/m3, kinematic viscosity = 10-6 m2/s). The rapid mixing tank imparts tank a velocity gradient of 900s-1 to blend 35 mg/l of alum with the flow for a detention time of 2 minutes. The power input (W) required for rapid mixing is

    • Options
    • A. 32.4
    • B. 36
    • C. 324
    • D. 32400
      • Discuss
    • 6. The vertical stress at depth z, directly below the point load p is (k is a constant)

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 7. On sag (or valley) curves the available sight distance is determined based on :

    • Options
    • A. design speed
    • B. height of obstacle
    • C. height of driver eye
    • D. night-time driving conditions
      • Discuss
    • 8. A two span beam with an internal hinge is shown below.

      The conjugate beam corresponding to this beam is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 9. Some of the structural strength of a clayey material that is lost by remoulding is slowly recovered with time. This property of soils to undergo an isothermal gel-to-soil-to-gel transformation upon agitation and subsequent rest is termed :

    • Options
    • A. Isotropy
    • B. Anisotropy
    • C. Thixotropy
    • D. Allotropy
      • Discuss
    • 10. The minimum area of tension reinforcement in a beam shall be greater than

    • Options
    • A. 0.85 bd/fy
    • B. 0.87 fy/bd
    • C. 0.04 bd
    • D. 0.4 bd/y
      • Discuss

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