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MCQs

Total Questions : 99 | Page 3 of 10 pages
Question 21. Coefficient of permeability or simple permeability is expressed in terms of ____________
  1.    cm/sec
  2.    m/day
  3.    feet/day
  4.    all of the mentioned
 Discuss Question
Answer: Option D. -> all of the mentioned
Answer: (d).all of the mentioned
Question 22. Stiff clays are ______________ permeable.
  1.    Highly
  2.    Least
  3.    Partially
  4.    None of the mentioned
 Discuss Question
Answer: Option B. -> Least
Answer: (b).Least
Question 23. Darcy’s law is valid as long as it is equal to or less than ____________
  1.    1
  2.    0
  3.    0.1
  4.    2
 Discuss Question
Answer: Option A. -> 1
Answer: (a).1
Question 24. Darcy’s law is valid for only ___________
  1.    Laminar flow
  2.    Turbulent flow
  3.    Hydraulic flow
  4.    All of the mentioned
 Discuss Question
Answer: Option A. -> Laminar flow
Answer: (a).Laminar flow
Question 25. The co-efficient of permeability of fine sand is ____________
  1.    1.0 and greater
  2.    1×10¯⁶ and smaller
  3.    1×10¯² to 5×10¯³
  4.    5×10¯² to 1×10¯³
 Discuss Question
Answer: Option D. -> 5×10¯² to 1×10¯³
Answer: (d).5×10¯² to 1×10¯³
Question 26. A soil deposit has three layers of soil. The permeability of the second layer is 1/2 that of the first layer and the permeability of the third layer is 1/3 that of the first layer. The thickness of each layer is equal. What will be its average permeability parallel to the bedding plane?
  1.    11k
  2.    18k
  3.    \(\frac{11}{18}k\)
  4.    \(\frac{18}{11}k\)
 Discuss Question
Answer: Option C. -> \(\frac{11}{18}k\)
Answer: (c).\(\frac{11}{18}k\)
Question 27. The coefficient of permeability of the two soil layers 1 and 2 in soil deposit is 9*10¯⁷ cm/s and 4*10¯⁷ cm/s respectively. The thickness of the layers is equal. The value of average permeability parallel to bedding planes is ________
  1.    4.5*10¯⁷ cm/s
  2.    5.5*10¯⁷ cm/s
  3.    6.5*10¯⁷ cm/s
  4.    7.5*10¯⁷ cm/s
 Discuss Question
Answer: Option C. -> 6.5*10¯⁷ cm/s
Answer: (c).6.5*10¯⁷ cm/s
Question 28. What will be its average permeability perpendicular to the bedding plane if a soil deposit has three layers of soil? The permeability of the second layer is 1/2 that of the first layer and the permeability of the third layer is 1/3 that of the first layer. The thickness of each layer is equal.
  1.    k
  2.    1/2k
  3.    1/3k
  4.    1/4k
 Discuss Question
Answer: Option B. -> 1/2k
Answer: (b).1/2k
Question 29. The coefficient of permeability of the two soil layers 1 and 2 in soil deposit is 9*10¯⁷ cm/s and 4*10¯⁷ cm/s respectively. The thickness of the layers is equal. The value of average permeability perpendicular to bedding planes is ________
  1.    4.5*10¯⁷ cm/s
  2.    5.5*10¯⁷ cm/s
  3.    6.5*10¯⁷ cm/s
  4.    7.5*10¯⁷ cm/s
 Discuss Question
Answer: Option B. -> 5.5*10¯⁷ cm/s
Answer: (b).5.5*10¯⁷ cm/s
Question 30. The total quantity of water flowing through the capillary tube is given by _________
  1.    \(q=\frac{hγ_w}{4ηL} R^2 \)
  2.    \(q=\frac{hγ_w}{4ηL} R^4\)
  3.    \(q=\frac{hγ_w}{8ηL} R^2\)
  4.    \(q=\frac{hγ_w}{8ηL} πR^4\)
 Discuss Question
Answer: Option D. -> \(q=\frac{hγ_w}{8ηL} πR^4\)
Answer: (d).\(q=\frac{hγ_w}{8ηL} πR^4\)

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