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MCQs

Total Questions : 845 | Page 5 of 85 pages
Question 41. The "outlet discharge factor" is the duty at the head of
  1.    main canal
  2.    branch canal
  3.    watercourse
  4.    distributory
 Discuss Question
Answer: Option C. -> watercourse
Question 42. If A is the area of the surface, x̅ is the depth of its C.G. from the surface of the water and ω is the density of water, then
  1.    Total pressure on the surface is equal to ωx̅
  2.    Depth of the point at which total pressure acts is equal to its moment of inertia divided by Ax̅
  3.    Depth of the centre of pressure is 2/3H vertically below the surface
  4.    All the above
 Discuss Question
Answer: Option D. -> All the above
Question 43. A water-logged land is found suitable for cultivation due to
  1.    Ease of tillage for preparation of the field for optimum condition of germination
  2.    Absence of aeration of soil from root zone of the plant
  3.    Regular supply of water to plants from the water table by capillary action
  4.    None of these
 Discuss Question
Answer: Option D. -> None of these
Question 44. If L is total length of a canal in kilometers, P is total perimeter of its lining in metres and C is the cost of lining per square metre, the additional expenditure involved on lining, is
  1.    100 PLC
  2.    PLC/1000
  3.    PL/1000C
  4.    PC/100L
 Discuss Question
Answer: Option A. -> 100 PLC
Question 45. An outlet which maintains a constant discharge irrespective of fluctuation in the water levels of the supplying channel or water course, is known as
  1.    Non-modular outlet
  2.    Semi-modular outlet
  3.    Flexible modular outlet
  4.    Right modular outlet
 Discuss Question
Answer: Option D. -> Right modular outlet
Question 46. Which of the following methods is used to estimate flood discharge based on high water marks left over in the past ?
  1.    slope-area method
  2.    area-velocity method
  3.    moving boat method
  4.    ultra-sonic method
 Discuss Question
Answer: Option A. -> slope-area method
Question 47. The drainage water intercepting the canal can be disposed of by passing the canal below the drainage in
  1.    aqueduct and syphon aqueduct
  2.    aqueduct and super passage
  3.    super passage and canal syphon
  4.    level crossing
 Discuss Question
Answer: Option C. -> super passage and canal syphon
Question 48. According to Bligh's creep theory, percolating water flows along
  1.    Straight path under the foundation of the dam
  2.    Circular path under the foundation of the dam
  3.    The outline of the base of the foundation of the dam
  4.    None of these
 Discuss Question
Answer: Option D. -> None of these
Question 49. A river training work is generally required when the river is
  1.    Meandering
  2.    Aggrading
  3.    Degrading
  4.    All the above
 Discuss Question
Answer: Option A. -> Meandering
Question 50. A river training work is generally required when the river is
  1.    aggrading type
  2.    degrading type
  3.    meandering type
  4.    both (A) and (B)
 Discuss Question
Answer: Option C. -> meandering type

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