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MCQs

Total Questions : 219 | Page 22 of 22 pages
Question 211. The compressibility of clays may also be caused by the following factor.
  1.    changes in salinity
  2.    ion exchange
  3.    expulsion of double layer water from between the grains
  4.    swelling of clay
 Discuss Question
Answer: Option C. -> expulsion of double layer water from between the grains
Answer: (c).expulsion of double layer water from between the grains
Question 212. Slow vertical deformation occurs when a compressive load is applied to a laterally confined layer of sand.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 213. Excess pore pressure is also known as ___________
  1.    hydrodynamic pressure
  2.    seepage pressure
  3.    effective pressure
  4.    total pressure
 Discuss Question
Answer: Option A. -> hydrodynamic pressure
Answer: (a).hydrodynamic pressure
Question 214. The mechanics of consolidation was demonstrated by ___________
  1.    Taylor
  2.    Skempton
  3.    Terzaghi
  4.    Darcy
 Discuss Question
Answer: Option C. -> Terzaghi
Answer: (c).Terzaghi
Question 215. The difference in voids ratio ∆e of initial and increased pressure is given by __________
  1.    \(∆e=log_{10}\frac{σ’_0+∆σ’}{σ’_0}\)
  2.    \(∆e=C_c \frac{σ’_0+∆σ’}{σ’_0}\)
  3.    \(∆e=C_c log_{10} \frac{σ’_0+∆σ’}{σ’_0}\)
  4.    \(∆e=C_c log_{10} \frac{σ’_0}{σ’_0} \)
 Discuss Question
Answer: Option C. -> \(∆e=C_c log_{10} \frac{σ’_0+∆σ’}{σ’_0}\)
Answer: (c).\(∆e=C_c log_{10} \frac{σ’_0+∆σ’}{σ’_0}\)
Question 216. The compression index is given by _________
  1.    \(C_c=\frac{e_0-e}{log_{10} \frac{σ’}{σ’_0}}\)
  2.    \(C_c=\frac{e}{log_{10} \frac{σ’}{σ’_0}}\)
  3.    \(C_c=\frac{e_0-e}{\frac{σ’}{σ’_0}}\)
  4.    \(C_c=\frac{e_0}{log_{10} \frac{σ’}{σ’_0}}\)
 Discuss Question
Answer: Option A. -> \(C_c=\frac{e_0-e}{log_{10} \frac{σ’}{σ’_0}}\)
Answer: (a).\(C_c=\frac{e_0-e}{log_{10} \frac{σ’}{σ’_0}}\)
Question 217. The expansion index is also known as ___________
  1.    compressibility index
  2.    compression index
  3.    swelling index
  4.    consolidation index
 Discuss Question
Answer: Option C. -> swelling index
Answer: (c).swelling index
Question 218. The expansion curve is given by the expression ___________
  1.    \(e_0=elog_{10} \frac{σ’_0+∆σ’}{σ’_0} \)
  2.    \(e_0=e/C_s \frac{σ’_0+∆σ’}{σ’_0} \)
  3.    \(e_0=e-C_s log_{10}\frac{σ’_0+∆σ’}{σ’_0} \)
  4.    \(e_0=e+C_s log_{10} \frac{σ’}{σ’_0} \)
 Discuss Question
Answer: Option D. -> \(e_0=e+C_s log_{10} \frac{σ’}{σ’_0} \)
Answer: (d).\(e_0=e+C_s log_{10} \frac{σ’}{σ’_0} \)
Question 219. The expansion index is a ‘curve’ on semi log plot.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False

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