What is the exam pattern and passing mark for GTU Fluid Mechanics & Hydraulics (3140611)?

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.

Where can I download the official GTU 3140611 Summer 2026 question paper PDF?

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Gujarat Technological UniversitySummer 2026 examination

GTU 3140611 Fluid Mechanics & Hydraulics Summer 2026 Question Paper & PDF

B.E. · Civil Engineering · Semester 4 · Subject code 3140611

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Total: 70 marks
To pass: 23 marks (33%)
Duration: 2.5 Hours 10:30 AM – 1:00 PM
Questions: 5 with internal choice

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2 of 25 questions on this paper were also asked in other years. 1 more is a type of question GTU sets again with new data. Each is marked below with the years it appeared.See all 3 repeated 3140611 questions, most asked first

Q.1

14 Marks

(a)

3 marks

Define specific weight, specific gravity and specific volume with units.

(b)

4 marks

State and explain Newton’s law of viscosity.

(c)

7 marks

Derive the expression for total pressure and center of pressure on an inclined plane surface submerged in fluid.

Q.2

14 Marks

(a)

3 marks

Sketch a U-tube manometer and derive an equation for pressure difference between two points using the manometer column heights.

(b)

4 marks

Derive continuity equation for a one-dimensional flow.

(c)

7 marks

Describe manometers and compare U-tube differential and inverted U-tube differential manometers.

(c)

7 marksSame type asked in 2 of 2 papers

A Venturimeter fitted to a horizontal pipe has an inlet diameter of 200 mm and a throat diameter of 100 mm. The differential U-tube manometer shows a mercury reading of 0.18 m. Calculate the discharge if the coefficient of discharge (Cd) is 0.98. (Take ρ_water = 1000 kg/m³, ρ_Hg = 13,600 kg/m³) .

Also asked in Summer 2025 Q3c OR

Q.3

14 Marks

(a)

3 marks

What is metacentric height? State its importance for stability of floating bodies.

(b)

4 marks

A U-tube manometer contains mercury (ρ = 13,600 kg/m³). The difference in levels is 0.25 m. Determine the pressure difference in kPa

(c)

7 marks

Explain Venturimeter with neat sketch. Derive discharge formula and give practical applications.

(a)

3 marks

Distinguish between steady and unsteady flow with examples.

(b)

4 marks

A rectangular channel carries water of depth 2 m and discharge 6 m³/s. Determine the velocity, Froude number and comment on the flow regime. (Take g = 9.81 m/s²).

(c)

7 marksAsked in 2 of 2 papers

Derive Bernoulli’s equation (energy form) and state assumptions.

Also asked in Summer 2025 Q3c

Q.4

14 Marks

(a)

3 marks

What is a hydraulic jump? State two uses in hydraulic engineering.

(b)

4 marks

Differentiate between major and minor losses in pipe flow with examples

(c)

7 marks

Describe Reynolds experiment With neat sketches and explain flow regimes.

(a)

3 marks

Define Froude number and state its significance in open channel flow.

(b)

4 marks

Explain velocity distribution in open channel flow and factors affecting it.

(c)

7 marks

Explain Prandtl’s mixing length theory and characteristics of turbulent flow in pipes.

Q.5

14 Marks

(a)

3 marks

Water flows through a 200 m long, 200 mm diameter pipe at velocity of 3 m/s. If friction factor f = 0.02, compute the head loss . (ρ=1000 kg/m³)

(b)

4 marks

List Buckingham Pi-theorem steps.

(c)

7 marks

Derive energy equation for open channel flow and explain specific energy diagram.

(a)

3 marksAsked in 2 of 2 papers

Write a short note on hydraulic gradient line and total energy line.

Also asked in Summer 2025 Q4b OR

(b)

4 marks

Write a note on Hagen-Poiseuille equation & its limitations.

(c)

7 marks

Explain model similitude & describe geometric, kinematic, and dynamic similarities with examples.

More Fluid Mechanics & Hydraulics papers

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

Summer 202570 marks · 5 questions

Other Semester 4 subjects

BE Civil

2140606

Numerical And Statistical Methods for Civil Engineering

3140601

Surveying

3140603

Structural Analysis-I

3140609

Civil Engineering - Societal & Global Impact

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About this paper

Official Gujarat Technological University (GTU) examination paper for Fluid Mechanics & Hydraulics (Summer 2026, B.E. · Civil Engineering, Sem 4). 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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