MCQOPTIONS
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MCQOPTIONS
This section includes 12 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 relative compaction Rc is related to the void ratio of soil by _______ |
| A. | \(\frac{(1+e)}{(1+e_{max})}\) |
| B. | \(\frac{(1+e)}{(1+e_{min})}\) |
| C. | \(\frac{(1+e_{min})}{(1+e)}\) |
| D. | \(\frac{(1+e_{max})}{(1+e_{min})}\) |
| E. | }{(1+e_{max})}\) b) \(\frac{(1+e)}{(1+e_{min})}\) c) \(\frac{(1+e_{min})}{(1+e)}\) d) \(\frac{(1+e_{max})}{(1+e_{min})}\) |
| Answer» D. \(\frac{(1+e_{max})}{(1+e_{min})}\) | |
| 2. |
When the soil is in loosest form, density index is zero and its relative compaction Rc is ______ |
| A. | 40% |
| B. | 60% |
| C. | 80% |
| D. | 100% |
| Answer» D. 100% | |
| 3. |
The relative compaction Rc is given by _______ |
| A. | γd,max/γd |
| B. | γd/γd,min |
| C. | γd/γd,max |
| D. | γd,min/γd |
| Answer» D. γd,min/γd | |
| 4. |
A soil has a dry density of 17.5kN/m3. It has densities corresponding to most compact and loosest state as 18.5 kN/m3 and 13 kN/m3 respectively. The relative density of the soil is ______ |
| A. | 0.871 |
| B. | 0.865 |
| C. | 0.869 |
| D. | 0.860 |
| Answer» C. 0.869 | |
| 5. |
The relative density of loose granular soil is given by the range ______ in percentage. |
| A. | 0-15 |
| B. | 15-35 |
| C. | 35-65 |
| D. | 85-100 |
| Answer» C. 35-65 | |
| 6. |
The density index ID in terms of densities is given by ______ |
| A. | \(\frac{(γ_{d,max}-γ_{d,min}) γ_{d,max}}{(γ_{d,max}-γ_{d}) γ_d}\) |
| B. | \(\frac{(γ_d-γ_{d,min}) γ_{d,max}}{(γ_{d,max}-γ_{d,min}) γ_d}\) |
| C. | \(\frac{(γ_d-γ_{d,min}) γ_{d,max}}{(γ_d-γ_{d,max}) γ_d}\) |
| D. | \(\frac{(γ_d-γ_{d,min}) γ_{d,max}}{(γ_{d,max}-γ_{d}) γ_d}\) |
| Answer» C. \(\frac{(γ_d-γ_{d,min}) γ_{d,max}}{(γ_d-γ_{d,max}) γ_d}\) | |
| 7. |
A soil has porosity of 30%. Its voids ratio in the loosest and densest state is 0.35 and 0.92 respectively. What will be its density index? |
| A. | 0.865 |
| B. | 0.872 |
| C. | 0.861 |
| D. | 0.881 |
| Answer» D. 0.881 | |
| 8. |
The density index of natural deposit in its densest state is ______ |
| A. | 0 |
| B. | 0.5 |
| C. | 1 |
| D. | 1.5 |
| Answer» D. 1.5 | |
| 9. |
When the natural state of cohesion-less soil is in its loosest form, its density index ID is equal to ____ |
| A. | 0 |
| B. | 0.5 |
| C. | 1 |
| D. | 1.5 |
| Answer» B. 0.5 | |
| 10. |
The formula for density index ID is ______ |
| A. | (emax – e) |
| B. | \(\frac{(e_{max} – e)}{(e_{min}-e)}\) |
| C. | \(\frac{(e_{max} – e_{min})}{(e_{max}-e)}\) |
| D. | \(\frac{(e_{max} – |
| E. | \(\frac{(e_{max} – e)}{(e_{min}-e)}\) c) \(\frac{(e_{max} – e_{min})}{(e_{max}-e)}\) d) \(\frac{(e_{max} – e)}{(e_{max}-e_{min})}\) |
| Answer» E. \(\frac{(e_{max} – e)}{(e_{min}-e)}\) c) \(\frac{(e_{max} – e_{min})}{(e_{max}-e)}\) d) \(\frac{(e_{max} – e)}{(e_{max}-e_{min})}\) | |
| 11. |
The term density index ID is used for cohesion-less soil only. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 12. |
The density index ID does not express the relative compactness of a natural cohesion-less soil. |
| A. | True |
| B. | False |
| Answer» C. | |