Questions and answers for exam Preparation

MCQs

Total Questions : 219 | Page 6 of 22 pages

Question 51. If a soil is confined in a consolidometer, then at equilibrium stage, the applied pressure is equal to ____________

zero
effective pressure
total pressure
pore pressure

Discuss Question

Answer: Option B. -> effective pressure
Answer: (b).effective pressure

Question 52. In a semi logarithmic plot, the virgin compression curve becomes

straight line
parabolic curve
hyperbolic curve
elliptical curve

Discuss Question

Answer: Option A. -> straight line
Answer: (a).straight line

Question 53. The compression index is a dimensionless quantity.

True
False
May be True or False
Can't say

Discuss Question

Answer: Option A. -> True
Answer: (a).True

Question 54. The virgin compression curve is the curve between _______________

voids ratio and effective pressure
effective pressure and total pressure
effective pressure and pore pressure
total pressure and total pressure

Discuss Question

Answer: Option A. -> voids ratio and effective pressure
Answer: (a).voids ratio and effective pressure

Question 55. The straight portion of the virgin compression curve is given by the empirical formula _______________

\(e = e_0*\frac{C_c log_{10} σ’}{σ’_0}\)
\(e = \frac{e_0}{\frac{C_c log_{10} σ’}{σ’_0}}\)
\(e = e_0-\frac{C_c log_{10} σ’}{σ’_0}\)
\(e = e_0+\frac{C_c log_{10} σ’}{σ’_0}\)

Discuss Question

Answer: Option C. -> \(e = e_0-\frac{C_c log_{10} σ’}{σ’_0}\)
Answer: (c).\(e = e_0-\frac{C_c log_{10} σ’}{σ’_0}\)

Question 56. In the spring analogy of consolidation, cylinder is filled with water up to bottom of piston and spring carries 10 units of load. If external two units of load is applied and the valve closed, then the effective pressure σ’ and hydrodynamic pressure u̅ is given by ___________

σ’=0, u̅ =12
σ’=0, u̅ =0
σ’=10, u̅ =2
σ’=12, u̅ =0

Discuss Question

Answer: Option C. -> σ’=10, u̅ =2
Answer: (c).σ’=10, u̅ =2

Question 57. In the spring analogy of consolidation, cylinder is filled with water up to bottom of piston and spring carries 10 units of load. If external two units of load is applied and the valve is partly opened, then the effective pressure σ’ and hydrodynamic pressure u̅ is given by ___________

σ’=0, u̅ =12
σ’=10+∆σ’, u̅ =2-∆σ’
σ’=10, u̅ =2
σ’=12, u̅ =0

Discuss Question

Answer: Option B. -> σ’=10+∆σ’, u̅ =2-∆σ’
Answer: (b).σ’=10+∆σ’, u̅ =2-∆σ’

Question 58. In the spring analogy of consolidation, cylinder is filled with water up to bottom of piston and spring carries 10 units of load. If external two units of load is applied and the valve is opened, then the effective pressure σ’ and hydrodynamic pressure u̅ is given by ___________