Explore topic-wise MCQs in Soil Mechanics.

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>
Discussion
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
Discussion
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>
Discussion
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
Discussion
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
Discussion
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
Discussion
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>
Discussion
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%
Discussion
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
Discussion
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
Discussion
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
Discussion
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
Discussion
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
Discussion
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
Discussion
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
Discussion