MCQOPTIONS
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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 1=30 , then 2 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} =cos ) |
| B. | ( frac{k_1}{k_2} =sin ) |
| C. | ( frac{k_1}{k_2} = frac{tan _1}{tan _2} ) |
| D. | ( frac{k_1}{k_2} =cot ) |
| Answer» D. ( frac{k_1}{k_2} =cot ) | |
| 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. | k<sub>x</sub> k<sub>y</sub> |
| B. | k<sub>x</sub>+k<sub>y</sub>=0 |
| C. | k<sub>x</sub>-k<sub>y</sub>=0 |
| D. | k<sub>x</sub>/k<sub>y</sub>=1 |
| Answer» B. k<sub>x</sub>+k<sub>y</sub>=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<sup>-7</sup>cm/s |
| B. | 17*10<sup>-7</sup>cm/s |
| C. | 8*10<sup>-7</sup>cm/s |
| D. | 12*10<sup>-7</sup>cm/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<sup>-7</sup>cm/s |
| B. | 7*10<sup>-7</sup>cm/s |
| C. | 8*10<sup>-7</sup>cm/s |
| D. | 9*10<sup>-7</sup>cm/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<sup>-7</sup>cm/s |
| B. | 6.6*10<sup>-7</sup>cm/s |
| C. | 5.6*10<sup>-7</sup>cm/s |
| D. | 7.6*10<sup>-7</sup>cm/s |
| Answer» D. 7.6*10<sup>-7</sup>cm/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. | k<sub>x</sub>+k<sub>y</sub> |
| B. | k<sub>x</sub>k<sub>y</sub> |
| C. | ( k<sub>x</sub>k<sub>y</sub>) |
| D. | k<sub>x</sub>/k<sub>y</sub> |
| Answer» D. k<sub>x</sub>/k<sub>y</sub> | |