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This section includes 15 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. |
Find the hydrostatic pressure of water at depth 10m. |
A. | 98.1KN/m<sup>2</sup> |
B. | 54. 1KN/m<sup>2</sup> |
C. | 32. 1KN/m<sup>2</sup> |
D. | 43. 1KN/m<sup>2</sup> |
Answer» B. 54. 1KN/m<sup>2</sup> | |
2. |
If excess hydraulic pressure is 19.62 KN/m2 then find the hydraulic head. |
A. | 2m |
B. | 4m |
C. | 8m |
D. | 16m |
Answer» B. 4m | |
3. |
If initial voids ratio is 1.08, then find the compression index. |
A. | 0.524 |
B. | 0.243 |
C. | 0.728 |
D. | 0.871 |
Answer» C. 0.728 | |
4. |
For a foundation, find the elapsed time in which 90% of ultimate settlement will occur. The coefficient of consolidation is 4*10-4cm2/s. The average drainage path is 50cm. |
A. | 56.38 days |
B. | 43.78 days |
C. | 61.34 days |
D. | 78.23 days |
Answer» D. 78.23 days | |
5. |
For a foundation, find the elapsed time in which 10% of ultimate settlement will occur. The coefficient of consolidation is 4*10-4cm2/s. The average drainage path is 50cm. |
A. | 19.9 hours |
B. | 15.5 hours |
C. | 13.9 hours |
D. | 17.5 hours |
Answer» D. 17.5 hours | |
6. |
A clay sample 24mm thick takes 20 minutes to consolidate 50% with single drainage. The field clay layer from which sample was obtained takes 386 days to consolidate 50% with double drainage. Find the depth of the clay layer in the field. |
A. | 800cm |
B. | 500cm |
C. | 600cm |
D. | 480cm |
Answer» B. 500cm | |
7. |
A clay sample 24mm thick takes 20 minutes to consolidate 50% with single drainage. The field clay layer from which sample was obtained takes 386 days to consolidate 50% with single drainage. Find the depth of the clay layer in the field. |
A. | 200cm |
B. | 367cm |
C. | 400cm |
D. | 569cm |
Answer» D. 569cm | |
8. |
A clay sample 24mm thick takes 20 minutes to consolidate 50% with double drainage. The field clay layer from which sample was obtained takes 386 days to consolidate 50% with single drainage. Find the depth of the clay layer in the field. |
A. | 5m |
B. | 2m |
C. | 22m |
D. | 16m |
Answer» C. 22m | |
9. |
A clay sample 24mm thick takes 20 minutes to consolidate 50% with double drainage. The field clay layer from which sample was obtained takes 386 days to consolidate 50% with double drainage. Find the depth of the clay layer in the field. |
A. | 4m |
B. | 7m |
C. | 3m |
D. | 2m |
Answer» B. 7m | |
10. |
Two clay layer of A and B of thickness 2cm and 3 cm is load with pressure of 200KN/m2. If the time taken by soil A to reach 50% consolidation is 1/4th of that required by soil B to reach 50% consolidation, then find the ratio of coefficients of Permeability. Given that ratio of coefficient of volume change is 1.751. |
A. | 5.234 |
B. | 2.456 |
C. | 3.114 |
D. | 4.233 |
Answer» D. 4.233 | |
11. |
Two clay layer of A and B of thickness 2cm and 3 cm is load with pressure of 200KN/m2. If the time taken by soil A to reach 50% consolidation is 1/4th of that required by soil B to reach 50% consolidation, then find the ratio of coefficients of consolidation. |
A. | 2.4432 |
B. | 1.7778 |
C. | 4.3312 |
D. | 5.3489 |
Answer» C. 4.3312 | |
12. |
If change in voids ratio is 0.18 and change in effective pressure is 100KN/m2, then the coefficient of compressibility is ______ |
A. | 2.5 10<sup>-3</sup> m<sup>2</sup>/kN |
B. | 2 10<sup>-3</sup> m<sup>2</sup>/kN |
C. | 9 10<sup>-3</sup> m<sup>2</sup>/kN |
D. | 9.5 10<sup>-3</sup> m<sup>2</sup>/kN |
Answer» C. 9 10<sup>-3</sup> m<sup>2</sup>/kN | |
13. |
For an ordinary clay of medium sensitivity, the value of compression index is _____ if liquid limit is 50%. |
A. | 0.36 |
B. | 0.45 |
C. | 0.12 |
D. | 0.64 |
Answer» B. 0.45 | |
14. |
For a remolded sample of clay with liquid limit of 45%, find its compression index. |
A. | 0.753 |
B. | 0.561 |
C. | 0.493 |
D. | 0.245 |
Answer» E. | |
15. |
For a mass of 3.192g of soil with voids ratio 0.532, find its saturated unit weight. |
A. | 20.44 KN/m<sup>3</sup> |
B. | 76.22 |
C. | 23.55 |
D. | 50.43 |
Answer» B. 76.22 | |