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MCQs

Total Questions : 845 | Page 81 of 85 pages
Question 801. A fall in a canal bed is generally provided, if
  1.    Ground slope exceeds the designed bed slope
  2.    None of these
  3.    Designed bed slope exceeds the ground slope
  4.    Ground slope is practically the same as the designed bed slope
 Discuss Question
Answer: Option A. -> Ground slope exceeds the designed bed slope
Question 802. The width of a dowla is generally kept between 30 to 60 cm and its height above the road level should invariably be more than
  1.    30 cm
  2.    40 cm
  3.    10 cm
  4.    20 cm
 Discuss Question
Answer: Option A. -> 30 cm
Question 803. The ratio of the discharge over a trapezoidal crest to a rectangular crest of Sarda falls of identical parameters, is
  1.    1.064
  2.    1.074
  3.    1.054
  4.    1.084
 Discuss Question
Answer: Option D. -> 1.084
Question 804. As compared to gravity dams, earthen dams
  1.    are less susceptible to failure
  2.    are costlier
  3.    require sound rock foundations
  4.    require less skilled labour
 Discuss Question
Answer: Option D. -> require less skilled labour
Question 805. The value of Sodium Absorption Ratio for high sodium water lies between
  1.    0 to 10
  2.    18 to 26
  3.    26 to 34
  4.    10 to 18
 Discuss Question
Answer: Option B. -> 18 to 26
Question 806. Bed bars in a canal are provided
  1.    To watch the general behavior of canal
  2.    To measure the discharge
  3.    To raise the supply level
  4.    To control the silting
 Discuss Question
Answer: Option A. -> To watch the general behavior of canal
Question 807. Which of the following can be used as a meter fall ?
  1.    All of these
  2.    unflumed glacis fall
  3.    vertical drop fall
  4.    flumed glacis fall
 Discuss Question
Answer: Option C. -> vertical drop fall
Question 808. The depth of water required to bring the soil moisture content of a given soil upto its field capacity is called
  1.    pellicular water
  2.    hygroscopic water
  3.    equivalent moisture
  4.    soil moisture deficiency
 Discuss Question
Answer: Option D. -> soil moisture deficiency
Question 809. If D is the depth of water upstream of the throat above its sill, B is the width of the throat, to achieve critical flow in an open venturi flume, the theoretical maximum flow Q, is
  1.    Q = 1.71 BD3/2
  2.    Q = 1.71 BD1/2
  3.    Q = 1/71 BD2/3
  4.    Q = 1.71 BD
 Discuss Question
Answer: Option A. -> Q = 1.71 BD3/2
Question 810. Pick up the incorrect statement from the following. Culturable commanded area is the gross area of an irrigation canal system less
  1.    Populated area
  2.    Alkaline area
  3.    Forest area
  4.    Fallow land
 Discuss Question
Answer: Option D. -> Fallow land

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