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MCQs

Total Questions : 845 | Page 80 of 85 pages
Question 791. The peak of a 4 hour flood hydrograph is 240 m3/sec . If the rainfall excess is 80 mm and base flow which is constant is 40 m3/sec, then the peak of 4-hours unit hydrograph will be
  1.    20 m3/sec
  2.    35 m3/sec
  3.    25 m3/sec
  4.    30 m3/sec
 Discuss Question
Answer: Option C. -> 25 m3/sec
Question 792. Fundamental momentum equation for a hydraulic jump, is
  1.    D₁² - D₂² = (2q/g) × (V₁ - V₂)
  2.    D₁² - D₂² = (2q/g) × (V₂ - V₁)
  3.    D₂² - D₁² = (2q/g) × (V - V₂)
  4.    D₁² + D₂² = (2q/g) × (V₂ - V₁)
 Discuss Question
Answer: Option C. -> D₂² - D₁² = (2q/g) × (V - V₂)
Question 793. According to Bligh's creep theory, percolating water flows along
  1.    Straight path under the foundation of the dam
  2.    The outline of the base of the foundation of the dam
  3.    Circular path under the foundation of the dam
  4.    None of these
 Discuss Question
Answer: Option D. -> None of these
Question 794. A land is known as waterlogged
  1.    capillary fringe reaches the root zone of plants
  2.    when the permanent wilting point is reached
  3.    None of these
  4.    when gravity drainage has ceased
 Discuss Question
Answer: Option A. -> capillary fringe reaches the root zone of plants
Question 795. The sensitivity of a rigid module is
  1.    between zero and one
  2.    zero
  3.    infinity
  4.    1
 Discuss Question
Answer: Option B. -> zero
Question 796. A deep well
  1.    has more discharge than a shallow well
  2.    is weaker structurally than a shallow well
  3.    is always deeper than a shallow well
  4.    both (A) and (B)
 Discuss Question
Answer: Option A. -> has more discharge than a shallow well
Question 797. The uplift pressure on a dam can be controlled byi) constructing cutoff under upstream faceii) constructing drainage channels between the dam and its foundationiii) by pressure grouting in foundationThe corret answer is
  1.    both (i) and (ii)
  2.    only (i)
  3.    both (i) and (iii)
  4.    (i), (ii) and (iii)
 Discuss Question
Answer: Option D. -> (i), (ii) and (iii)
Question 798. Which of the following canal structures is used to remove surplus water from an irrigation channel into a natural drain ?
  1.    canal regulator
  2.    canal fall
  3.    canal outlet
  4.    canal escape
 Discuss Question
Answer: Option D. -> canal escape
Question 799. A 6 hours storm had 4 cm of rainfall and the resulting runoff was 2 cm. If
  1.    9.0 cm
  2.    6.0 cm
  3.    7.5 cm
  4.    4.5 cm
 Discuss Question
Answer: Option B. -> 6.0 cm
Question 800. For an annual flood series arranged in descending order of magnitude, the return for a magnitude listed at position period m in a total data N is
  1.    m/N
  2.    m/(N+l)
  3.    N/(m+l)
  4.    (N+l)/m
 Discuss Question
Answer: Option D. -> (N+l)/m

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