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MCQs

Total Questions : 94 | Page 8 of 10 pages
Question 71. Water is flowing at a rate of 0.04 m³/s in a soil sample of 12m thick and cross section of 50m². The coefficient of permeability is 1.6*10¯³m/s. What will be the seepage pressure?
  1.    50.76 kN/m²
  2.    52.34 kN/m²
  3.    55.34 kN/m²
  4.    58.86 kN/m²
 Discuss Question
Answer: Option D. -> 58.86 kN/m²
Answer: (d).58.86 kN/m²
Question 72. Water is flowing at a rate of 0.04 m³/s in a soil sample of 12m thick and cross section of 50m². The coefficient of permeability is 1.6*10¯³m/s. What will be the seepage force per unit volume?
  1.    4.9 kN/m³
  2.    3.9 kN/m³
  3.    4.1 kN/m³
  4.    3.2 kN/m³
 Discuss Question
Answer: Option A. -> 4.9 kN/m³
Answer: (a).4.9 kN/m³
Question 73. Water is flowing at a rate of 0.04 m³/s in a soil sample of 12m thick and cross section of 50m². The coefficient of permeability is 1.6*10¯³m/s. The submerged unit weight γ’=9.59 kN/m³. Calculate the effective pressure if flow is in upward direction.
  1.    50.76 kN/m²
  2.    52.34 kN/m²
  3.    55.34 kN/m²
  4.    56.22 kN/m²
 Discuss Question
Answer: Option D. -> 56.22 kN/m²
Answer: (d).56.22 kN/m²
Question 74. Water is flowing at a rate of 0.04 m³/s in a soil sample of 12m thick and cross section of 50m². The coefficient of permeability is 1.6*10¯³m/s. What will be the seepage force?
  1.    2943kN
  2.    3453kN
  3.    2454kN
  4.    2443kN
 Discuss Question
Answer: Option A. -> 2943kN
Answer: (a).2943kN
Question 75. A soil has voids ratio of 0.78 and critical gradient at which quick sand condition occurs is 0.94. Calculate the specific gravity.
  1.    2
  2.    2.5
  3.    2.67
  4.    2.71
 Discuss Question
Answer: Option C. -> 2.67
Answer: (c).2.67
Question 76. The analytical solution of schaffernak and Van Iterson gave result only for slopes, having __________
  1.    α>30°
  2.    α<30°
  3.    α>60°
  4.    α<60°
 Discuss Question
Answer: Option B. -> α<30°
Answer: (b).α<30°
Question 77. The phreatic line is the ________
  1.    top flow line separating saturated and unsaturated zones
  2.    middle flow line separating saturated and unsaturated zones
  3.    bottom flow line separating saturated and unsaturated zones
  4.    bottom flow line separating saturated and partially saturated zones
 Discuss Question
Answer: Option A. -> top flow line separating saturated and unsaturated zones
Answer: (a).top flow line separating saturated and unsaturated zones
Question 78. The phreatic line can be located by Casagrande method.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 79. What kind of method was suggested by Casagrande, for determining the phreatic line?
  1.    Experimental method
  2.    Analytical method
  3.    Graphical method
  4.    All of the mentioned
 Discuss Question
Answer: Option C. -> Graphical method
Answer: (c).Graphical method
Question 80. The phreatic line is also known as the ________
  1.    seepage line
  2.    discharge line
  3.    velocity line
  4.    pressure line
 Discuss Question
Answer: Option A. -> seepage line
Answer: (a).seepage line

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