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MCQs

Total Questions : 73 | Page 2 of 8 pages
Question 11. The angle of orientation of the spheres in the maximum possible voids ratio is ______
  1.    60°
  2.    90°
  3.    30°
  4.    75°
 Discuss Question
Answer: Option B. -> 90°
Answer: (b).90°
Question 12. The porosity of intermediate packing factor is given by ______
  1.    n = 1-[1/(6*(1-cosα)*( √(1-2cosα) )]
  2.    n = (1-cosα)*( √(1+2cosα) )
  3.    n = 1-[π/(6*(1-cosα)*(√(1-2cosα))]
  4.    n = 6*(1-cosα)*(√(1-2cosα))
 Discuss Question
Answer: Option C. -> n = 1-[π/(6*(1-cosα)*(√(1-2cosα))]
Answer: (c).n = 1-[π/(6*(1-cosα)*(√(1-2cosα))]
Question 13. In the densest state of packing, each sphere is in contact with ______ neighbouring spheres.
  1.    6
  2.    12
  3.    8
  4.    18
 Discuss Question
Answer: Option B. -> 12
Answer: (b).12
Question 14. The volume of solids in a unit cell is constant.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 15. The volume of the solids in a unit cell is given by ______
  1.    π/6
  2.    π/4
  3.    π/6
  4.    2π/3
 Discuss Question
Answer: Option C. -> π/6
Answer: (c).π/6
Question 16. What will be the degree of saturation of a soil sample whose specific gravity G=2.7, void ratio e=0.66 and water content w=20%?
  1.    85.88%
  2.    90.91%
  3.    81.81%
  4.    92.92%
 Discuss Question
Answer: Option C. -> 81.81%
Answer: (c).81.81%
Question 17. The term density index Iᴅ is used for cohesion-less soil only.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 18. The formula for density index Iᴅ is ______
  1.    (ee_{max} – e)
  2.    \(\frac{(e_{max} – e)}{(e_{min}-e)}\)
  3.    \(\frac{(e_{max} – e_{min})}{(e_{max}-e)}\)
  4.    \(\frac{(e_{max} – e)}{(e_{max}-e_{min})}\)
 Discuss Question
Answer: Option D. -> \(\frac{(e_{max} – e)}{(e_{max}-e_{min})}\)
Answer: (d).\(\frac{(e_{max} – e)}{(e_{max}-e_{min})}\)
Question 19. The density index Iᴅ does not express the relative compactness of a natural cohesion-less soil.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 20. In wet soil mass, air occupies one-seventh of its volume and water occupies one- eighth of its volume. The void ratio of the soil is ______
  1.    0.25
  2.    0.36
  3.    0.43
  4.    1
 Discuss Question
Answer: Option B. -> 0.36
Answer: (b).0.36

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