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>
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