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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. |
A soil sample is having voids ratio 0.72 under a pressure of 200KN/m2. If the void ratio is reduced to 0.5 under 450kn/m2 load, then find the change in effective pressure. |
A. | 4000 kN/m<sup>2</sup> |
B. | 250 kN/m<sup>2</sup> |
C. | 350 kN/m<sup>2</sup> |
D. | 2000 kN/m<sup>2</sup> |
Answer» C. 350 kN/m<sup>2</sup> | |
2. |
If a soil A has coefficient of volume change as 0.536m2/MN and the ratio of coefficient of volume change of A and B soils is 1.845, then find mv for soil B. |
A. | 0.255 m<sup>2</sup>/MN |
B. | 0.291 m<sup>2</sup>/MN |
C. | 0.234 m<sup>2</sup>/MN |
D. | 0.345 m<sup>2</sup>/MN |
Answer» C. 0.234 m<sup>2</sup>/MN | |
3. |
If coefficient of volume change is 0.291 m2/MN, e=0.1 and the initial voids ratio is 0.72, then find the change in effective pressure. |
A. | 200 KN/m<sup>2</sup> |
B. | 50 KN/m<sup>2</sup> |
C. | 300 KN/m<sup>2</sup> |
D. | 00 KN/m<sup>2</sup> |
Answer» B. 50 KN/m<sup>2</sup> | |
4. |
The change in voids ratio is 0.18 and initial void ratio is 0.68 with the increase of pressure as 200KN/m2. Find the coefficient of Compressibility. |
A. | 0.9 m<sup>2</sup>/MN |
B. | 0.7 m<sup>2</sup>/MN |
C. | 0.4 m<sup>2</sup>/MN |
D. | 0.5 m<sup>2</sup>/MN |
Answer» B. 0.7 m<sup>2</sup>/MN | |
5. |
The change in voids ratio is 0.18 and initial void ratio is 0.68 with the increase of pressure as 200KN/m2. Find the coefficient of volume change. |
A. | 0.536 m<sup>2</sup>/MN |
B. | 0.111 m<sup>2</sup>/MN |
C. | 0.832 m<sup>2</sup>/MN |
D. | 0.356 m<sup>2</sup>/MN |
Answer» B. 0.111 m<sup>2</sup>/MN | |
6. |
If the final height of specimen Hf is 13.45mm and final voids is 0.864, then the change of voids ratio e with respect to H is ____________ |
A. | e=0.139 H |
B. | e=0.123 H |
C. | e=0.178 H |
D. | e=0.148 H |
Answer» B. e=0.123 H | |
7. |
If height of solids Hs is 6.725mm, mass is 180.4g with specific gravity G=2.68, then final the Cross-sectional area of specimen. |
A. | 220 cm<sup>2</sup> |
B. | 342 cm<sup>2</sup> |
C. | 100 cm<sup>2</sup> |
D. | 659 cm<sup>2</sup> |
Answer» D. 659 cm<sup>2</sup> | |
8. |
If the final voids ratio is 0.864 for a soil sample of specific gravity 2.7, then its final water content will be _______________ |
A. | 32% |
B. | 48% |
C. | 56% |
D. | 62% |
Answer» B. 48% | |
9. |
If the final water content is 30% and specific gravity is 2.65 for a soil sample, then its final void ratio is _________ |
A. | 0.900 |
B. | 0.795 |
C. | 0.667 |
D. | 0.549 |
Answer» C. 0.667 | |
10. |
If the specimen height H is 24mm and height of solids Hs is 13.45mm, then find the voids ratio. |
A. | 0.786 |
B. | 0.432 |
C. | 2 |
D. | 34 |
Answer» B. 0.432 | |
11. |
For a dry soil mass of 180.4 g, specific gravity 2.68 and cross-sectional area of specimen as 50 cm2, find the height of solids Hs. |
A. | 13.45 mm |
B. | 14 mm |
C. | 17 mm |
D. | 19.5 mm |
Answer» B. 14 mm | |
12. |
A clay sample in laboratory test has 24mm thickness. It is tested with single drainage and consolidated 50%. The clay layer from which sample was obtained is 4m thick. Find the time to consolidate 50% with single drainage. |
A. | 386 days |
B. | 390 days |
C. | 404 days |
D. | 175 days |
Answer» B. 390 days | |
13. |
A clay sample in laboratory test has 24mm thickness. It is tested with single drainage and consolidated 50%. The clay layer from which sample was obtained is 4m thick. Find the time to consolidate 50% with double drainage. |
A. | 44 days |
B. | 55 days |
C. | 97 days |
D. | 107 days |
Answer» D. 107 days | |
14. |
A clay sample in laboratory test has 24mm thickness. It is tested with double drainage and consolidated 50%. The clay layer from which sample was obtained is 4m thick. Find the time to consolidate 50% with single drainage. |
A. | 1544 days |
B. | 1455 days |
C. | 1322 days |
D. | 1799 days |
Answer» B. 1455 days | |
15. |
A clay sample in laboratory test has 24mm thickness. It is tested with double drainage and consolidated 50%. The clay layer from which sample was obtained is 4m thick. Find the time to consolidate 50% with double drainage. |
A. | 365 days |
B. | 386 days |
C. | 750 days |
D. | 150 days |
Answer» C. 750 days | |