MCQOPTIONS
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MCQOPTIONS
This section includes 11 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. |
If is the angle subtended by the edges of the strip load, then the Boussinesq s vertical pressure z due to strip load is given by ________ |
| A. | ( _z= frac{q}{ }( +sin ) ) |
| B. | ( _z= frac{q}{ }( -sin ) ) |
| C. | ( _z= frac{q}{ }(sin ) ) |
| D. | ( _z= frac{q}{ } ) |
| Answer» B. ( _z= frac{q}{ }( -sin ) ) | |
| 2. |
The Boussinesq s vertical pressure z due to line load at a point situated vertically below the line load is given by ________ |
| A. | ( _z= frac{2q }{ z} ) |
| B. | ( _z= frac{3q }{ z} ) |
| C. | ( _z= frac{2q }{ z} frac{1}{[1+(z)^2 ]^2} ) |
| D. | ( _z= frac{2q }{z} ) |
| Answer» B. ( _z= frac{3q }{ z} ) | |
| 3. |
The Boussinesq s vertical pressure z due to line load is given by ________ |
| A. | ( _z= frac{5q }{ z} frac{1}{[1+ frac{x}{z}^2 ]^2} ) |
| B. | ( _z= frac{3q }{ z} frac{1}{[1+( frac{x}{z})^2 ]^2} ) |
| C. | ( _z= frac{2q }{ z} frac{1}{[1+( frac{x}{z})^2 ]^2} ) |
| D. | ( _z= frac{2q }{z} frac{1}{[1+ frac{x}{z} ^2 ]^2} ) |
| Answer» D. ( _z= frac{2q }{z} frac{1}{[1+ frac{x}{z} ^2 ]^2} ) | |
| 4. |
If is the apex angle which the line joining the apex makes with the outer edge of the loading of a circular area, then the Boussinesq s vertical pressure z under a uniformly loaded circular area is given by ______________ |
| A. | <sub>z</sub>=q[1-sin<sup>3</sup> ] |
| B. | <sub>z</sub>=q[1-cos<sup>3</sup> ] |
| C. | <sub>z</sub>=q[1-tan<sup>3</sup> ] |
| D. | <sub>z</sub>=q[1-cos<sup>2</sup> ] |
| Answer» C. <sub>z</sub>=q[1-tan<sup>3</sup> ] | |
| 5. |
The Boussinesq influence factor for uniformly distributed circular area is given by ____________ |
| A. | (K_B= left[1- left[ frac{1}{1+( frac{a}{z})^2} right]^{ frac{3}{2}} right] ) |
| B. | (K_B= left[1+ left[ frac{1}{1+( frac{a}{z})^2} right]^{ frac{3}{2}} right] ) |
| C. | (K_B= left[ frac{1}{1+( frac{a}{z})^2} right]^{ frac{3}{2}} ) |
| D. | (K_B= q left[1- left[ frac{1}{1+( frac{a}{z})^2} right]^{ frac{5}{2}} right] ) |
| Answer» B. (K_B= left[1+ left[ frac{1}{1+( frac{a}{z})^2} right]^{ frac{3}{2}} right] ) | |
| 6. |
The Boussinesq s vertical pressure z under a uniformly loaded circular area is given by ________ |
| A. | ( _z=q left[1- left[ frac{1}{1+( frac{a}{z})^2} right]^{ frac{3}{2}} right] ) |
| B. | ( _z=q left[1+ left[ frac{1}{1+( frac{a}{z})^2} right]^{ frac{3}{2}} right] ) |
| C. | ( _z=q left[ frac{1}{1+( frac{a}{z})^2} right]^{ frac{3}{2}} ) |
| D. | ( _z=q left[1- left[ frac{1}{1+( frac{a}{z})^2} right]^{ frac{5}{2}} right] ) |
| Answer» B. ( _z=q left[1+ left[ frac{1}{1+( frac{a}{z})^2} right]^{ frac{3}{2}} right] ) | |
| 7. |
When the maximum vertical stress is 0.235 kN/m2 at a radial distance of 4m from the point load is __________ kN. |
| A. | 42.34 |
| B. | 10.56 |
| C. | 20.76 |
| D. | 30.65 |
| Answer» B. 10.56 | |
| 8. |
The Boussinesq influence factor for r/z ratio equal to 1 is given by ____________ |
| A. | 0.3840 |
| B. | 0.5465 |
| C. | 0.0844 |
| D. | 0.2312 |
| Answer» D. 0.2312 | |
| 9. |
If r/z ratio is 2 and load of 20 kN is acting at a point, then the vertical pressure at a depth 6m is ____________ |
| A. | 0.4356 kN/m<sup>2</sup> |
| B. | 0.244 kN/m<sup>2</sup> |
| C. | 0.1518 kN/m<sup>2</sup> |
| D. | 4.72*10<sup>-3</sup> kN/m<sup>2</sup> |
| Answer» E. | |
| 10. |
What will be the intensity of shear stress at a depth of 4m and at a radial distance of 1m from concentrated load of 20 kN? |
| A. | 0.4356 kN/m<sup>2</sup> |
| B. | 0.244 kN/m<sup>2</sup> |
| C. | 0.652 kN/m<sup>2</sup> |
| D. | 0.128 kN/m<sup>2</sup> |
| Answer» E. | |
| 11. |
For maximum vertical stress, the shear stress is _________ if the load is 30 kN and r=4m. |
| A. | 0.4356 kN/m<sup>2</sup> |
| B. | 0.1359 kN/m<sup>2</sup> |
| C. | 0.1518 kN/m<sup>2</sup> |
| D. | 0.3625 kN/m<sup>2</sup> |
| Answer» C. 0.1518 kN/m<sup>2</sup> | |