Explore topic-wise MCQs in Soil Mechanics.

This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Soil Mechanics knowledge and support exam preparation. Choose a topic below to get started.

1.

When the pre-consolidation pressure p is greater than initial effective pressure 0 but smaller than effective pressure , then the final settlement is calculated on the basis of equation _________

A. ( _f=H frac{C_c}{1+e_o}log_{10} frac{ _p }{ _0}+H frac{C_c}{1+e_o}log_{10} frac{ }{ _p } )
B. ( _f=H frac{C_S}{1+e_o}log_{10} frac{ _p }{ _0}+H frac{C_S}{1+e_o}log_{10} frac{ }{ _p } )
C. ( _f= frac{C_S}{1+e_o}log_{10} frac{ _p }{ _0}+ frac{C_c}{1+e_o}log_{10} frac{ }{ _p } )
D. ( _f=H frac{C_S}{1+e_o}log_{10} frac{ _p }{ _0}+H frac{C_c}{1+e_o}log_{10} frac{ }{ _p } )
Answer» E.
Discussion
2.

When the pre-consolidation pressure p is greater than initial effective pressure 0 but smaller than effective pressure , then the final settlement is calculated on the basis of ___________

A. settlement due to <sub>0</sub> to <sub>p</sub> using C<sub>S</sub> only
B. settlement due to <sub>p</sub> to using C<sub>c</sub> only
C. settlement due to <sub>0</sub> to <sub>p</sub> using C<sub>S</sub> and settlement due to <sub>p</sub> to using C<sub>c</sub>
D. settlement due to to <sub>p</sub> using C<sub>c</sub> and settlement due to <sub>p</sub> to using C<sub>c</sub>
Answer» D. settlement due to to <sub>p</sub> using C<sub>c</sub> and settlement due to <sub>p</sub> to using C<sub>c</sub>
Discussion
3.

For a finite surface loading, the intensity of change in effective pressure decreases with depth of layer in linear manner.

A. True
B. False
Answer» C.
Discussion
4.

When the effective pressure is smaller than pre-consolidation pressure, the final settlement is ____________

A. ( _f=Hlog_{10} frac{ }{ _0} )
B. ( _f=H frac{C_c}{1+e_o} log_{10} frac{ }{ _0} )
C. ( _f=H frac{C_S}{1+e_o} log_{10} frac{ }{ _0} )
D. ( _f=H frac{1}{1+e_o} log_{10} frac{ }{ _0} )
Answer» D. ( _f=H frac{1}{1+e_o} log_{10} frac{ }{ _0} )
Discussion
5.

The recompression index Cs is________ compared to compression index Cc for pre-consolidated soils.

A. small
B. very small
C. large
D. very large
Answer» C. large
Discussion
6.

In case of pre-consolidated soil, the final settlement is ___________

A. small
B. negligible
C. large
D. very large
Answer» B. negligible
Discussion
7.

In terms of compression index and voids ratio for normally consolidated soil, the final settlement is _________

A. ( _f=Hlog_{10} frac{ }{ _0} )
B. ( _f=H frac{C_c}{1+e_o} log_{10} frac{ }{ _0} )
C. ( _f= frac{C_c}{1+e_o} log_{10} frac{ }{ _0} )
D. ( _f=H frac{1}{1+e_o} log_{10} frac{ }{ _0} )
Answer» C. ( _f= frac{C_c}{1+e_o} log_{10} frac{ }{ _0} )
Discussion
8.

The compression index for normally consolidated soil is ____________

A. constant
B. variable
C. zero
D. unity
Answer» B. variable
Discussion
9.

The final settlement in terms of voids ratio is given by ____________

A. ( _f= frac{e_o-e}{e_o}H )
B. ( _f= frac{e}{1+e_o}H )
C. ( _f= frac{e_o-e}{1+e_o} )
D. ( _f= frac{e_o-e}{1+e_o}H )
Answer» E.
Discussion
10.

The relation between difference in thickness and voids ratio is given by ___________

A. ( H = frac{e_o-e}{1+e_o} )
B. ( frac{ H}{H_0} = frac{e_o-e}{1+e_o} )
C. (H_0 = frac{e_o-e}{1+e_o} )
D. ( frac{ H}{H_0} = frac{1}{1+e_o} )
Answer» C. (H_0 = frac{e_o-e}{1+e_o} )
Discussion
11.

In numerical integration of the equation, the total settlement of the layer is equal to _____________

A. product of individual settlements of the various thin layers
B. sum of individual settlements of the various thin layers
C. difference of individual settlements of the various thin layers
D. division of individual settlements of the various thin layers
Answer» C. difference of individual settlements of the various thin layers
Discussion
12.

The numerical integration may be performed by _______________

A. dividing the total thickness H into a number of thin layers
B. dividing the total thickness H into only two thin layers
C. dividing the total thickness H by a factor
D. excluding the thickness of the soil layer
Answer» B. dividing the total thickness H into only two thin layers
Discussion
13.

The integration of the equation ( _f= _0^Hm_v dz ) can be performed by _____________

A. numerical method only
B. graphical method only
C. both numerical method and graphical method
D. can not be performed
Answer» D. can not be performed
Discussion
14.

In practical cases, the final consolidation settlement is calculated by the equation ___________

A. ( _f= _0^H m_v Hdz )
B. ( _f= _0^HH dz )
C. ( _f= _0^Hm_v H dz )
D. ( _f= _0^Hm_v dz )
Answer» E.
Discussion
15.

Who conducted consolidation test on a number of clays from different parts of the world?

A. Terzaghi
B. Taylor
C. Skempton
D. Darcy
Answer» D. Darcy
Discussion