MCQOPTIONS
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MCQOPTIONS
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. |
The hydraulic gradient i is given by _________ |
| A. | \(i=\frac{γ_w ∂h}{∂z}\) |
| B. | \(i=\frac{∂h}{γ_w ∂z}\) |
| C. | \(i=\frac{\overline{u}∂h}{∂z}\) |
| D. | \(i=\frac{∂h}{∂z}\) |
| Answer» E. | |
| 2. |
At time t, the hydraulic head corresponding to excess hydrostatic pressure is __________ |
| A. | \(h=\frac{σ’}{γ_w}\) |
| B. | \(h=\frac{\overline{u}}{γ_w} \) |
| C. | \(h=\frac{γ_w}{\overline{u}}\) |
| D. | \(h=\frac{σ’\overline{u}}{γ_w} \) |
| Answer» C. \(h=\frac{γ_w}{\overline{u}}\) | |
| 3. |
A number of isochrones can be drawn for water levels in piezometric tubes at the same time t. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
The slope of isochrones at any point indicates ___________ |
| A. | change of pore pressure with total pressure |
| B. | change of effective pressure with pore pressure |
| C. | change of pore pressure with depth at time interval t |
| D. | change of pore pressure with volume |
| Answer» D. change of pore pressure with volume | |
| 5. |
The isochrones represents ___________ |
| A. | water levels in piezometric tubes at different time |
| B. | water levels in piezometric tubes at the same level |
| C. | water levels in piezometric tubes at different levels |
| D. | water levels in piezometric tubes at the same time |
| Answer» E. | |
| 6. |
The distribution of excess hydrostatic pressure is represented by ___________ |
| A. | straight line |
| B. | curve |
| C. | helical curve |
| D. | closed curve |
| Answer» C. helical curve | |
| 7. |
At intermediate time t, the consolidating pressure is equal to ___________ |
| A. | ∆σ=σ+u |
| B. | ∆σ=σ’ |
| C. | ∆σ=σ’+u |
| D. | ∆σ=σ’-u |
| Answer» D. ∆σ=σ’-u | |
| 8. |
In determination of one-dimensional consolidation as shown in the figure, the line AB represents ___________ |
| A. | at initial time t0, u=∆σ |
| B. | at initial time t0, u=0 |
| C. | at final time tf, u=∆σ |
| D. | at final time tf, u=0 |
| Answer» E. | |
| 9. |
In determination of one-dimensional consolidation as shown in the figure, the line CD represents ___________ |
| A. | at initial time t0, u=∆σ |
| B. | at initial time t0, u=0 |
| C. | at final time tf, u=∆σ |
| D. | at final time tf, u=0 |
| Answer» B. at initial time t0, u=0 | |
| 10. |
In Terzaghi’s Theory of one dimensional consolidation, coefficient of permeability is ______ |
| A. | zero |
| B. | variable |
| C. | constant |
| D. | unity |
| Answer» D. unity | |
| 11. |
In Terzaghi’s Theory of one dimensional consolidation, Darcy’s law is _______ |
| A. | invalid |
| B. | valid |
| C. | invalid only for clays |
| D. | invalid only for gravel |
| Answer» C. invalid only for clays | |
| 12. |
In Terzaghi’s Theory of one dimensional consolidation, soil particles are ____________ and water is ______________ |
| A. | compressible, incompressible |
| B. | both are compressible |
| C. | both are incompressible |
| D. | incompressible, compressible |
| Answer» D. incompressible, compressible | |
| 13. |
In Terzaghi’s Theory of one dimensional consolidation, deformation of soil is entirely due to _________________ |
| A. | volume change |
| B. | permeability of soil |
| C. | seepage of fluids |
| D. | viscosity of fluids |
| Answer» B. permeability of soil | |
| 14. |
In Terzaghi’s Theory of one dimensional consolidation, soil is considered to be __________ |
| A. | homogenous |
| B. | non-homogenous |
| C. | anisotropic |
| D. | heterogeneous |
| Answer» B. non-homogenous | |
| 15. |
The theoretical concept of consolidation process was developed by _____________ |
| A. | Terzaghi |
| B. | Taylor |
| C. | Skempton |
| D. | Darcy |
| Answer» B. Taylor | |