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MCQs

Total Questions : 845 | Page 1 of 85 pages
Question 1. If H and d are the water depth and drop in the bed level at a Sarda fall, the width B of the trapezoidal crest, is given by
  1.    B = 0.22 √(H + d)
  2.    B = 0.33 √(H + d)
  3.    B = 0.44 √(H + d)
  4.    B = 0.55 √(H + d)
 Discuss Question
Answer: Option D. -> B = 0.55 √(H + d)
Question 2. Lacey's equation for calculating flood discharge in rivers, is
  1.    V = 10.8 R1/2 S1/2
  2.    V = 10.8 R2/3 S1/2
  3.    V = 10.8 R2/3 S1/3
  4.    V = 10.8 R1/3 S2/3
 Discuss Question
Answer: Option C. -> V = 10.8 R2/3 S1/3
Question 3. Lining of irrigation channels
  1.    increases the waterlogging area
  2.    decreases the waterlogging area
  3.    does not change the water logging area
  4.    none of the above
 Discuss Question
Answer: Option B. -> decreases the waterlogging area
Question 4. Which of the following types of falls use parabolic glacis for energy dissipation ?
  1.    vertical drop fall
  2.    glacis fall
  3.    Montague type fall
  4.    inglis fall
 Discuss Question
Answer: Option C. -> Montague type fall
Question 5. Canals taken off from ice-fed perennial rivers, are known
  1.    Permanent canals
  2.    Ridge canals
  3.    Perennial canals
  4.    Inundation canals
 Discuss Question
Answer: Option C. -> Perennial canals
Question 6. The velocity of drainage water in the barrels of a syphon-aqueduct, is normally limited to
  1.    1 to 2 m per second
  2.    2 to 3 m per second
  3.    3 to 4 m per second
  4.    4 to 5 m per second
 Discuss Question
Answer: Option B. -> 2 to 3 m per second
Question 7. Pick up the correct sequence of the part of a canal system from the following
  1.    Head work-distributary-branch canal-minor
  2.    Head works-main canal-branch canal-distributary-minor
  3.    Head works-main canal-branch canal-minor-distributary
  4.    Heads works-branch canal-main canal distributary, minor
 Discuss Question
Answer: Option B. -> Head works-main canal-branch canal-distributary-minor
Question 8. While deciding the alignment of a proposed canal taking off from a river at B, three alignments of approximately equal lengths are available. These cross a drainages at C1, C2 and C3 where drainage bed levels C1 > C2 > C3, you will provide at site C3
  1.    An aqueduct
  2.    A syphon aqueduct
  3.    A super passage
  4.    A syphon
 Discuss Question
Answer: Option A. -> An aqueduct
Question 9. To hold hydraulic jumps, baffle walls are provided in
  1.    Sarda type falls
  2.    English type falls
  3.    Montague type falls
  4.    Vertical type falls
 Discuss Question
Answer: Option B. -> English type falls
Question 10. The total capacity of a reservoir is 25 million cubic metres and dead storage is 5 million cubic metres. If the average volume of sediment deposition is 0.10 million cubic metre per year, then the usefulness of the reservoir will start reducing after
  1.    50 years
  2.    150 years
  3.    200 years
  4.    250 years
 Discuss Question
Answer: Option A. -> 50 years

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