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MCQs

Total Questions : 153 | Page 7 of 16 pages
Question 61. If the height of the dam is 10 m, then the value of top width (A) according to Strange’s recommendations is _________________
  1.    1.85 m
  2.    2.5 m
  3.    3.0 m
  4.    4.0 m
 Discuss Question
Answer: Option B. -> 2.5 m
Answer: (b).2.5 m
Question 62. Calculate the top width (A) of the earth dam of height 50 m.
  1.    5.0 m
  2.    4.75 m
  3.    6.10 m
  4.    3 m
 Discuss Question
Answer: Option C. -> 6.10 m
Answer: (c).6.10 m
Question 63. When the height of the dam is in between 7.5 to 15, the Strange’s recommended value for maximum freeboard of low earth dams is ______________
  1.    1.2 to 1.5
  2.    1.5 to 1.8
  3.    1.85
  4.    2.1
 Discuss Question
Answer: Option C. -> 1.85
Answer: (c).1.85
Question 64. Provision of horizontal berms at suitable vertical intervals may be provided in the downstream face of an earthen dam in order to _________________
  1.    allow the movement of cattle
  2.    allow the inspection of vehicles to move
  3.    reduce the erosion caused by the flowing rainwater
  4.    increase the erosion
 Discuss Question
Answer: Option C. -> reduce the erosion caused by the flowing rainwater
Answer: (c).reduce the erosion caused by the flowing rainwater
Question 65. A phreatic line in seepage analysis is defined as the line on which pressure is _______________
  1.    equal to the atmosphere
  2.    greater than atmosphere
  3.    lower than atmosphere
  4.    varying
 Discuss Question
Answer: Option A. -> equal to the atmosphere
Answer: (a).equal to the atmosphere
Question 66. During seepage through an earthen mass, the direction of seepage is ________________ to the equipotential lines.
  1.    perpendicular
  2.    parallel
  3.    not defined
  4.    diagonal
 Discuss Question
Answer: Option A. -> perpendicular
Answer: (a).perpendicular
Question 67. The effects of capillary fringe are on the slightly safer side and are neglected.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 68. Which of the following line acts as a dividing line between dry (or moist) and submerged line?
  1.    Equipotential line
  2.    Path line
  3.    Seepage line
  4.    Streak line
 Discuss Question
Answer: Option C. -> Seepage line
Answer: (c).Seepage line
Question 69. The upstream face of the earth dam is considered as _____________________
  1.    equipotential line
  2.    streamline
  3.    streak line
  4.    path line
 Discuss Question
Answer: Option A. -> equipotential line
Answer: (a).equipotential line
Question 70. Stone pitching or riprap is generally provided to avoid _______________
  1.    over-topping
  2.    erosion of U/s and d/s face
  3.    cracking due to frost action
  4.    gully formation
 Discuss Question
Answer: Option B. -> erosion of U/s and d/s face
Answer: (b).erosion of U/s and d/s face

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