What is the exam pattern and passing mark for GTU Geotechnical Engineering (3130606)?

The GTU theory examination carries 70 total marks with a duration of 2.5 Hours. Minimum passing criteria is 23 marks (33%). The paper consists of 5 main questions with official marking breakdown and internal choices.

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The official GTU question paper PDF is linked directly from Gujarat Technological University's official examination archive. You can view the full paper online or download the original file.

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Gujarat Technological UniversitySummer 2026 examination

GTU 3130606 Geotechnical Engineering Summer 2026 Question Paper & PDF

B.E. · Civil Engineering · Semester 3 · Subject code 3130606

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Total: 70 marks
To pass: 23 marks (33%)
Duration: 2.5 Hours 2:30 PM – 5:00 PM
Questions: 5 with internal choice

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Q.1

14 Marks

(a)

3 marks

What is the importance of geotechnical engineering in various domain of Civil Engineering?

(b)

4 marks

Explain the terms:

i)hydraulic gradient

ii)Darcy's law

(c)

7 marks

Define the terms:

i)Water content

ii)Void ratio

iii)Degree of saturation. The porosity of a soil sample is 35%. Calculate the dry density and void ratio of soil mass. Take G= 2.7.

Q.2

14 Marks

(a)

3 marks

Differentiate between compaction and consolidation.

(b)

4 marks

Discuss the methods of field compaction. How the clay is compacted in the field?

(c)

7 marks

Explain step by step procedure to perform permeability test for coarse grained soil in the laboratory with neat sketch.

(c)

7 marks

Explain step by step procedure to perform liquid limit test in the laboratory with neat sketch.

Q.3

14 Marks

(a)

3 marks

Write the Mohr-Coulomb equation of shear stress and explain terms involved in it.

(b)

4 marks

Write the equation of Boussinesq for stress distribution and explain each term involved in it.

(c)

7 marks

What is a flow net? What are its characteristics? Give the application of flow net.

(a)

3 marks

Discuss the factors affecting compaction of soil mass.

(b)

4 marks

An unconfined cylindrical specimen of clay fails under an axial stress of 240 kN/m². The failure plane was inclined at an angle of 55 deg. to the horizontal. Determine the cohesion and angle of friction of soil mass.

(c)

7 marks

What is the importance of Newmark’s chart? How it can be drawn? Write important points to be noted while using Newmark's influence chart.

Q.4

14 Marks

(a)

3 marks

Differentiate between active earth pressure and passive earth pressure.

(b)

4 marks

Describe the factors affecting the shear strength of cohesion less soil.

(c)

7 marks

Explain the method of slice to find the factor of safety of a slope with neat sketch.

(a)

3 marks

Describe common types of slope failure with neat sketch.

(b)

4 marks

What is the size of box shear test specimen and unconfined compression test specimen?

(c)

7 marks

What is the critical height of a slope? Explain Taylor’s stability number in detail.

Q.5

14 Marks

(a)

3 marks

Differentiate between strip footing and strap footing.

(b)

4 marks

Discuss the assumption made in the theory of consolidation by Terzaghi.

(c)

7 marks

A footing 2.25 m square is located at a depth of 1.5 m in a sand of unit weight 18 kN/m3.The shear strength parameters are C = 0 and Ø = 36°. Calculate

i)ultimate bearing capacity

ii)net ultimate bearing capacity and

iii)net safe bearing capacity of soil. Take F.S. = 3. Nc= 65.4, Nq = 49.4, Nϒ = 54.0

(a)

3 marks

What are the objectives of soil exploration?

(b)

4 marks

During the consolidation test, the void ratio is found to reduce from 0.90 to 0.50 under the stress increment of 100 kN/m2 to 200 kN/m2. Find

i)Coefficient of compressibility

ii)compression index.

(c)

7 marks

In which conditions pile foundation is preferred? Explain group action of piles

More Geotechnical Engineering papers

Questions repeat across sessions. Working through two or three papers shows you which topics GTU asks most.

Summer 202570 marks · 5 questions

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About this paper

Official Gujarat Technological University (GTU) examination paper for Geotechnical Engineering (Summer 2026, B.E. · Civil Engineering, Sem 3). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.

Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.

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