B.TechSemester 32023-24Fluid MechanicsBCE303

Fluid Mechanics (BCE303) - AKTU Question Paper 2023-24

B.Tech · Semester 3 · Free PDF Download

This is the official AKTU Fluid Mechanics Previous Year Question Paper for B.Tech Semester 3, academic session 2023-24. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech

Semester:Semester 3

Session:2023-24

University:AKTU / UPTU

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Questions Asked in 2023-24

Fluid Mechanics (BCE303) — complete question paper · 70 marks · 3 Hours

Section AAttempt all q u e s t i o n s i n b r i e f . 2 x 7 = 1 4

a
What is the continuum assumption of fluid flow?
b
Calculate the density, specific weight, and weight of one lite r of petrol of specific gravity = 0.7
c
Give the name of types of fluid flow
d
Write the basic components of compressible flow
e
What is meant by streamlined flows?
f
Write the name of forces present in fluid flow
g
What do you know about model analysis?

Section BAttempt any three o f t h e f o l l o w i n g : 7 x 3 = 2 1

a
What do you mean by single column manometer? How are they used for the measurement of pressure?
b
The following equation represents the two velocity components, d e t e r m i n e t h e t h i r d components of velocity such that satisfies the continuity equation
c
Find the sonic velocity for the following fluids: (i) Crude oi l of sp. Gr. 0.8 and bulk modulus 153036 N/cm2. (ii) Mercury having a bulk modulus of 2648700 N/cm2
d
Draw the neat sketch of Venuti meter show in parts, Find out t he expression for rate of flow through venturi meter
e
In a 1 in 20 model of stilling basin, the hydraulic jump in th e model is observed to be 0.20 mtr. What is the height of the hydraulic jump in the prototype? If the energy dissipated in the model is 1/10 kw, what is the corresponding value in prototype

Section CAttempt any one p a r t o f t h e f o l l o w i n g : 7 x 1 = 7

a
Determine the total pressure on a circular plate of diameter 1.5 m which is placed vertically in water in such a way that the centre of the plate is 3 m below the free surface of water. Find the position of centre of pressure also
b
How will you determine the meta-centric height of floating body experimentally? Explain with neat sketch
a
The stream function for a tw o-dimensional flow is given by ψ = 2 xy, calculate the velocity at the point P (2, 3).Find the velocity potential φ
b
Write the assumptions of continuity equation. Find the deri vation of continuity equation
a
An orifice meter with orifice diameter 10 cm is inserted in a p i p e o f 2 0 c m d i a m e t e r . t h e pressure gauges filled upstream a nd downstream of the orifice m eter gives readings of 19.62 N/cm2 and 9.81 N/cm2 respectively. Co-efficient of discharge for the orifice meter is given as 0.6. Find the discharge of water through pipe
b
Show that the loss of head due to sudden expansion in pipel ine is a function of velocity head
a
Determine the distance from the pipe wall at which the loca l velocity is equal to the average velocity for turbulent flow in pipe. For the velocity profile in laminar boundary layer as Find the thickness of the boundary layer and the shear stress 1 .5 m from the leading edge of plate is 2 m long and 1.4 m wide and is placed in water which is moving with a velocity of 200 mm per second. Find the total drag force on the plate if µ for water = 0.1 poise
a
Find out the expression for thee drag on a sphere, when the Reynold’s number of the flow is
b
The efficiency ɳ of a fan depends on density ρ, dynamic vis cosity µ of the fluid, angular velocity ω, diameter of the rotor D and the discharge Q. Expres s ɳ in terms of dimensionless parameters by Buckingham’s π-theorem

Question text is extracted from the official AKTU question paper PDF above. Hindi translations are omitted — every question is printed in English in the original paper. Last verified: 2026-08-23.

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