Soil Mechanics and Foundation Engineering MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Soil Mechanics and Foundation Engineering, a fundamental topic in the field of Civil Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Soil Mechanics and Foundation Engineering MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Soil Mechanics and Foundation Engineering mcq questions that explore various aspects of Soil Mechanics and Foundation Engineering problems. Each MCQ is crafted to challenge your understanding of Soil Mechanics and Foundation Engineering principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Civil Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Soil Mechanics and Foundation Engineering MCQs are your pathway to success in mastering this essential Civil Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Soil Mechanics and Foundation Engineering. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Soil Mechanics and Foundation Engineering knowledge to the test? Let's get started with our carefully curated MCQs!

Soil Mechanics and Foundation Engineering MCQs | Page 15 of 28

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Q141.
Coulomb's wedge theory assumes that

a.

back fill is dry, cohesionless, homogeneous and isotropic

b.

slip surface is the plane which passes through the heel of the wall

c.

sliding wedge itself acts as a rigid body and the value of earth pressure is obtained by considering the limiting equilibrium of the wedge

d.

all the above.

Discuss
Answer: (d).all the above.
Q142.
If dry density, water density and specific gravity of solids of a given soil sample are 1.6 g/cc, 1.84 g/cc and 2.56 respectively, the porosity of the soil sample, is

a.

0.375

b.

0.370

c.

0.380

d.

0.390

Discuss
Answer: (a).0.375
Q143.
Pick up the correct statement from the following:

a.

O.M.C. refers to the moisture corresponding to the maximum point on the moisture content dry density curve

b.

The line which shows moisture content dry density relation for soil containing a constant percentage of air voids, is known as air void line

c.

The weight of hammer used for compaction test is 25 kg

d.

All the above.

Discuss
Answer: (d).All the above.
Q144.
The passive earth pressure of a soil, is proportional to (where ฯ† is the angle of internal friction of the soil.)

a.

tan (45° - ฯ†)

b.

tan (45° + ฯ†)

c.

tan² (45° - ฯ†

d.

tan² (45° + ฯ†)

Discuss
Answer: (d).tan² (45° + ฯ†)
Q145.
If a soil undergoes a change in shape and volume by application of external loads over it, but recovers its shape and volume immediately after removal of the load, the property of the soil is said to be

a.

Resilience of soils

b.

Elasticity of soils

c.

Compressibility of soils

d.

None of these.

Discuss
Answer: (b).Elasticity of soils
Q146.
If the unit weight of sand particles is 2.696 g/cc. and porosity in loose state is 44%, the critical hydraulic gradient for quick sand condition, is

a.

0.91

b.

0.92

c.

0.93

d.

0.95

Discuss
Answer: (d).0.95
Q147.
The void ratio of a soil sample decreases from 1.50 to 1.25 when the pressure is increased from 25 tonnes/m² to 50 tonnes/m², the coefficient of compressibility is

a.

0.01

b.

0.02

c.

0.05

d.

0.001

Discuss
Answer: (a).0.01
Q148.
The minimum centre to centre distance of friction piles of 1 m diameter, is

a.

2 m

b.

2 m to 3 m

c.

3 m to 4 m

d.

5 m

Discuss
Answer: (c).3 m to 4 m
Q149.
Over-consolidation of soils is caused due to

a.

erosion of over burden

b.

melting of ice sheets after glaciation

c.

permanent rise of water table

d.

all the above.

Discuss
Answer: (d).all the above.
Q150.
Darcy's law is applicable to seepage if a soil is

a.

homogeneous

b.

isotropic

c.

incompressible

d.

all the above.

Discuss
Answer: (d).all the above.
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