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.

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>
Discussion
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
Discussion
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
Discussion
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
Discussion
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
Discussion
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
Discussion
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
Discussion
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
Discussion
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
Discussion
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
Discussion
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
Discussion
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
Discussion
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
Discussion
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.
Discussion
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
Discussion