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. |
When the ratio of r/z equals to 2, the Boussinesq influence factor is ________ of the maximum. |
| A. | 23% |
| B. | 57% |
| C. | 17.7% |
| D. | 1.8% |
| Answer» E. | |
| 2. |
When the ratio of r/z equals to 1, the Boussinesq influence factor is ________ of the maximum. |
| A. | 23% |
| B. | 57% |
| C. | 17.7% |
| D. | 1.8% |
| Answer» D. 1.8% | |
| 3. |
For maximum vertical stress, the shear stress is _________ if the load is 20 kN and r=2m. |
| A. | 0.4356 kN/m2 |
| B. | 0.244 kN/m2 |
| C. | 0.1518 kN/m2 |
| D. | 0.3625 kN/m2 |
| Answer» E. | |
| 4. |
When the maximum vertical stress \((σ_z)_{max}=\frac{0.0888Q}{r^2}\) at a point, the shear stress at that point is ____________ |
| A. | \(τ_{rz}=\frac{0.0888Q}{r^2} \) |
| B. | \(τ_{rz}=\frac{0.0725Q}{r^2} \) |
| C. | \(τ_{rz}=\frac{0.234Q}{r^2} \) |
| D. | \(τ_{rz}=\frac{0.328Q}{r^2} \) |
| Answer» C. \(τ_{rz}=\frac{0.234Q}{r^2} \) | |
| 5. |
When the ratio of r/z equals to 0.5, the Boussinesq influence factor is ________ of the maximum. |
| A. | 23% |
| B. | 57% |
| C. | 17.7% |
| D. | 1.8% |
| Answer» C. 17.7% | |
| 6. |
The Boussinesq influence factor for r/z ratio equal to 0.3 is given by ____________ |
| A. | 0.384 |
| B. | 0.5465 |
| C. | 0.9873 |
| D. | 0.2312 |
| Answer» B. 0.5465 | |
| 7. |
If a load of 30 kN is acting on a point on the ground surface, then the intensity of vertical stress directly below the point on its axis of loading at a depth of 2m is given by __________ |
| A. | 4.356 kN/m2 |
| B. | 2.44 kN/m2 |
| C. | 3.58kN/m2 |
| D. | 5.97 kN/m2 |
| Answer» D. 5.97 kN/m2 | |
| 8. |
If r/z ratio is 0.5 and load of 20 kN is acting at a point, then the vertical pressure at a depth 6m is ____________ |
| A. | 0.4356 kN/m2 |
| B. | 0.244 kN/m2 |
| C. | 0.1518 kN/m2 |
| D. | 0.597 kN/m2 |
| Answer» D. 0.597 kN/m2 | |
| 9. |
What will be the intensity of vertical stress at a depth of 4m directly below the concentrated load of 20 kN? |
| A. | 0.4356 kN/m2 |
| B. | 0.244 kN/m2 |
| C. | 0.652 kN/m2 |
| D. | 0.597 kN/m2 |
| Answer» E. | |
| 10. |
When the maximum vertical stress is 0.111 kN/m2 at a radial distance of 4m from the point load is __________ kN. |
| A. | 0 |
| B. | 10 |
| C. | 20 |
| D. | 30 |
| Answer» D. 30 | |
| 11. |
The maximum vertical stress is _______ when a concentrated load of 20 kN acts at a radial distance of 2m. |
| A. | 0.444 kN/m2 |
| B. | 0.555 kN/m2 |
| C. | 0.666 kN/m2 |
| D. | 0.777 kN/m2 |
| Answer» B. 0.555 kN/m2 | |