Gujarat Technological UniversitySummer 2025 examination

GTU 2160602 Applied Fluid Mechanics Summer 2025 Question Paper & PDF

B.E. · Civil Engineering · Semester 6 · Subject code 2160602
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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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Q.1

14 Marks
(a)
3 marks
Write the differences between pipe flow and open channel flow?
(b)
4 marks
Explain the terms:(1) Hydraulic gradient line (2) Total energy line.
(c)
7 marks
Determine the loss of head due to friction in pipes by using
1)Darcy- Weisbach Formula and
2)Chezy’s Formula.

Q.2

14 Marks
(a)
3 marks
Explain the term dimensional homogeneity with an example.
(b)
4 marks
Explain Buckingham's π-theorem in dimensional analysis.
(c)
7 marks

Derive an expression for loss of head due to sudden enlargement of a pipe.

(c)
7 marks

Explain water hammer in pipes. Derive an expression for the rise of pressure when the flowing water in a pipe is brought to rest by closing the valve gradually.

Q.3

14 Marks
(a)
3 marks
Define:Hydraulic mean depth, Afflux and Back water curve.
(b)
4 marks

Differentiate between:(1) Uniform flow and non-uniform flow (2) Steady and unsteady flow

(c)
7 marks

Explain boundary layer separation. Also discuss the effect of pressure gradient on boundary layer separation.

(a)
3 marks
Define: Critical, sub-critical and super-critical flow in an open channel.
(b)
4 marks

Differentiate between:(1) Laminar flow and turbulent flow (2) Rapidly varied flow and gradually varied flow

(c)
7 marks

Explain displacement thickness. Derive an expression for the displacement thickness.

Q.4

14 Marks
(a)
3 marks
Explain various types of open channels with sketches.
(b)
4 marks

Derive the condition for maximum discharge for a given value of specific energy.

(c)
7 marks

Define the term most economical channel section? Derive the conditions for the most economical trapezoidal channel section.

(a)
3 marks

Write down the assumptions made for deriving an equation for gradually varied flow.

(b)
4 marks

Define hydraulic jump? Derive an expression for depth of hydraulic jump in terms of upstream Froude number.

(c)
7 marks

Draw a specific energy curve. Derive expression for critical depth and critical velocity.

Q.5

14 Marks
(a)
3 marks
Define specific speed, unit discharge and unit power of turbine
(b)
4 marks
Give classification of hydraulic turbine,
(c)
7 marks
Explain construction and working of a centrifugal pump..
(a)
3 marks
What is priming? Why is it necessary?
(b)
4 marks
Differentiate between
1)Impulse and Reaction turbines
2)Kaplan and propeller turbines.
(c)
7 marks
Explain construction and working of a Pelton wheel.

Other Semester 6 subjects

BE Civil

2160601
Advanced Construction and Equipments
2160604
Water & Waste Water Engineering
2160607
Elementary Structural Design
3160608
Urban Transportation Planning

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About this paper

Official Gujarat Technological University (GTU) examination paper for Applied Fluid Mechanics (Summer 2025, B.E. · Civil Engineering, Sem 6). 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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