MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Geotechnical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
If at interface of dissimilar soils, k1=9×10-7 cm/s and k2=4×10-7 cm/s. The deflection of flow lines at interface has θ1=30°, then θ2 will be _______ |
| A. | 12.39° |
| B. | 13.39° |
| C. | 14.39° |
| D. | 15.39° |
| Answer» D. 15.39° | |
| 2. |
The deflection of flow lines at interface of dissimilar soils is given by ______ |
| A. | \(\frac{k_1}{k_2} =cosθ\) |
| B. | \(\frac{k_1}{k_2} =sinθ \) |
| C. | \(\frac{k_1}{k_2} =\frac{tanθ_1}{tanθ_2} \) |
| D. | \(\frac{k_1}{k_2} =cotθ\) |
| Answer» D. \(\frac{k_1}{k_2} =cotθ\) | |
| 3. |
The actual flow net for anisotropic soil will have orthogonal set of curves. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
The laplacian form of equation for anisotropic soil is ______ |
| A. | \(\frac{∂^2 h}{∂x^2}+\frac{∂^2 h}{∂y^2}=0\) |
| B. | \(k_x \frac{∂^2 h}{∂x^2}+\frac{∂^2 h}{∂y^2}=0\) |
| C. | \(\frac{∂^2 h}{∂x^2}+k_y\frac{∂^2 h}{∂y^2}=0\) |
| D. | \(\frac{k_x}{k_y}\frac{∂^2 h}{∂x^2}+\frac{∂^2 h}{∂y^2}=0\) |
| Answer» E. | |
| 5. |
For an anisotropic soil ________ is true. |
| A. | kx≠ky |
| B. | kx+ky=0 |
| C. | kx-ky=0 |
| D. | kx/ky=1 |
| Answer» B. kx+ky=0 | |
| 6. |
The coefficient of permeability is 6*10-7cm/s for a soil with a certain liquid. If the viscosity is reduced to half, then the coefficient of permeability is __________ |
| A. | 6*10-7cm/s |
| B. | 17*10-7cm/s |
| C. | 8*10-7cm/s |
| D. | 12*10-7cm/s |
| Answer» E. | |
| 7. |
If a fully saturated soil mass has a water content of 100%, then its void ratio is _________ |
| A. | less than the specific gravity |
| B. | greater than the specific gravity |
| C. | equal to specific gravity |
| D. | does not depend on specific gravity |
| Answer» D. does not depend on specific gravity | |
| 8. |
If the effective permeability k’ is 6*10-7cm/s and ky=4*10-7cm/s, then kx is equal to ________ |
| A. | 6*10-7cm/s |
| B. | 7*10-7cm/s |
| C. | 8*10-7cm/s |
| D. | 9*10-7cm/s |
| Answer» E. | |
| 9. |
A soil mass has kx=8*10-7cm/s and ky=4*10-7cm/s. The effective permeability of the soil is ______ |
| A. | 4.6*10-7cm/s |
| B. | 6.6*10-7cm/s |
| C. | 5.6*10-7cm/s |
| D. | 7.6*10-7cm/s |
| Answer» D. 7.6*10-7cm/s | |
| 10. |
For an anisotropic soil, the permeability in the horizontal and vertical direction are kx and ky respectively. What will be the effective permeability of the soil? |
| A. | kx+ky |
| B. | kxky |
| C. | √( kxky) |
| D. | kx/ky |
| Answer» D. kx/ky | |