Gujarat Technological UniversitySummer 2026 examination

GTU 3170621 Design of hydraulic structures Summer 2026 Question Paper & PDF

B.E. · Civil Engineering · Semester 7 · Subject code 3170621
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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 are the main types of dams classified based on their structure and design?
(b)
4 marks
Differentiate between high gravity dam and low gravity dam.
(c)
7 marks

Explain the role of site investigation and subsurface exploration in dam foundation treatment.

Q.2

14 Marks
(a)
3 marks
What is a cofferdam? how does it assist during dam construction?
(b)
4 marks
Describe the typical failure modes of gravity dams and how design prevents them.
(c)
7 marks

Discuss the temperature control measures used to prevent cracking in mass concrete gravity dams.

(c)
7 marks

Explain the various forces acting on a gravity dam and how they affect the dam's stability.

Q.3

14 Marks
(a)
3 marks
Analyze how uplift pressure is distributed along the base of a gravity dam.
(b)
4 marks

Evaluate the pros and cons of using roller-compacted concrete in gravity dam construction.

(c)
7 marks

Explain the method of determining stresses in the base of a gravity dam and their allowable limits.

(a)
3 marks
Explain the design considerations of the impervious core in earth dams.
(b)
4 marks

Describe the construction sequence and compaction methods used in earth dam construction.

(c)
7 marks
Discuss the typical causes of failure in earth dams and suggest preventive measures.

Q.4

14 Marks
(a)
3 marks
Discuss the benefits and limitations of using rock-fill dams in seismic zones.
(b)
4 marks

Assess the effectiveness of cutoff walls in controlling seepage under embankment dams.

(c)
7 marks

Using flow net analysis, explain how seepage quantity is calculated through an embankment dam.

(a)
3 marks
Analyze the role of pore water pressure in slope stability of earth dams.
(b)
4 marks
Analyze the influence of foundation soil properties on the behavior of earth dams.
(c)
7 marks

Analyze the impact of spillway discharge on downstream erosion and suggest mitigation methods.

Q.5

14 Marks
(a)
3 marks

Assess the role of aeration galleries in mitigating cavitation damage and improving spillway durability.

(b)
4 marks

Evaluate the advantages and disadvantages of gated spillways compared to ungated spillways.

(c)
7 marks
Explain the energy dissipation by hydraulic jump in hydraulic structures.
(a)
3 marks
Explain how tailwater depth variations influence the efficiency of energy dissipation.
(b)
4 marks

Evaluate the effectiveness of different types of spillway gates in flood control operations.

(c)
7 marks

Design a stilling basin by assuming suitable data related to flow, velocity and tailwater conditions.

Other Semester 7 subjects

BE Civil

2170607
Design of Reinforced Concrete Structures
2170609
Irrigation Engineering
2170610
Professional Practices and Valuation
2170613
Traffic Engineering

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About this paper

Official Gujarat Technological University (GTU) examination paper for Design of hydraulic structures (Summer 2026, B.E. · Civil Engineering, Sem 7). 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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