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  • Question

  • The disinfection efficiency of chlorine in water treatment


  • Options
  • A. is not dependent on pH value.
  • B. is increased by increased pH values.
  • C. remains constant at all pH values.
  • D. is reduced by increased pH value.

  • Correct Answer
  • is increased by increased pH values. 

    • GATE Exam Questions problems

    Search Results

    • 1. If the deformations of the truss-members are as shown in parentheses, the rotation of the member bd is :

    • Options
    • A. 0.5 x 10-2 radian
    • B. 1.0 x 10-2 radian
    • C. 1.5 x 10-2 radian
    • D. 2.0 x 10-2 radian
      • Discuss
    • 2. A circular sewer 2 m diameter has to carry a discharge of 2 m3/s when flowing nearly full. What is the minmum required slope to initiate the flow? (Assume Manning's n = 0.015)

    • Options
    • A. 0.00023
    • B. 0.000036
    • C. 0.000091
    • D. 0.000014
      • Discuss
    • 3. Which one of the following statements is true with regard to the flexibility method of analysis?

    • Options
    • A. The method is used to analyse determinate structures
    • B. The method is used only for manual analysis of indeterminate structures
    • C. The method is used for analysis of flexible structures
    • D. The method is used for analysis of indeterminate structures with lesser degree of static indeterminacy.
      • Discuss
    • 4. An isolated T beam is used as a walkway. The beam is simply supported with an effective span of 6 m. The effective width of flange, for the cross-section shown in the below figure is

    • Options
    • A. 900 mm
    • B. 1000 mm
    • C. 1259 mm
    • D. 2200 mm
      • Discuss
    • 5. Coulomb's theory of earth pressure is based on :

    • Options
    • A. the theory of elasticity
    • B. the theory of plasticity
    • C. empirical rules
    • D. wedge theory
      • Discuss
    • 6. The material that exhibits the same elastic properties in all the directions at a point, is said to be

    • Options
    • A. homogeneous
    • B. orthotropic
    • C. visco-elastic
    • D. isotropic
      • Discuss
    • 7. For a highway with design speed of 100 kmph, the safe overtaking sight distance is (assume accelerations as 0.53 m/sec2)

    • Options
    • A. 300 m
    • B. 750 m
    • C. 320 m
    • D. 470 m
      • Discuss
    • 8. What is the equivalent single wheel load of a dual wheel assembly carrying 20, 440 N each for pavement thickness of 20 cm? Centre to centre spacing of tyres is 27 cm and the distance between the walls of tyres is 11 cm

    • Options
    • A. 27, 600 N
    • B. 32, 300 N
    • C. 40, 880 N
    • D. 30, 190 N
      • Discuss
    • 9. The type of surveying in which the curvature of the earth is taken into account is called

    • Options
    • A. Geodetic surveying
    • B. Plane surveying
    • C. Preliminary surveying
    • D. Topographical surveying
      • Discuss
    • 10. The shape of clay particle is usually

    • Options
    • A. angular
    • B. flaky
    • C. tubular
    • D. rounde
      • Discuss

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