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Previous year question hub

Fluid Mechanics - Fluid Mechanics and Thermal Sciences - Mechanical Engineering Previous Year Questions

Practice Fluid Mechanics - Fluid Mechanics and Thermal Sciences - Mechanical Engineering previous year questions organised from real papers, with year-wise coverage and clear topic navigation.

27Papers
16Years
127Questions
1Topics

Fluid Mechanics question pattern

Every graph below is calculated only from this selection.

Questions by year

Year-wise coverage for Fluid Mechanics. Each bar uses a separate theme-derived color.

Difficulty distribution

How the classified questions are distributed by difficulty.

Easy 70 55.1%
Medium 54 42.5%
Hard 3 2.4%

Question type distribution

MCQ, numerical, multiple-select and other formats found in these papers.

MCQ 77 60.6%
Numerical Answer Type (NAT) 42 33.1%
MSQ 4 3.1%
Fill in the blanks 4 3.1%

Subject weightage

Top subjects by unique question coverage.

Mechanical Engineering
127 Qs

Most asked topics

Top topics across the included previous year papers.

Fluid Mechanics and Thermal Sciences
127 Qs

Subtopic coverage

Top subtopics inside this exact selection.

Fluid Mechanics
127 Qs

Paper coverage

Question coverage for the most populated papers. Every active PYP paper remains listed below.

Mechanical Engineering (ME) 2026
5 Qs
Mechanical Engineering (ME) 2025
6 Qs
Mechanical Engineering (ME) 2024
4 Qs
Mechanical Engineering (ME) 2023
6 Qs
Mechanical Engineering (ME) 2021 [Session 1]
4 Qs
Mechanical Engineering (ME) 2020 [Session 1]
4 Qs
Mechanical Engineering (ME) 2020 [Session 2]
3 Qs
Mechanical Engineering (ME) 2019 [Session 2]
5 Qs
Mechanical Engineering (ME) 2019 [Session 1]
4 Qs
Mechanical Engineering (ME) 2018 [Session 1]
7 Qs
Mechanical Engineering (ME) 2018 [Session 2]
4 Qs
Mechanical Engineering (ME) 2016 [Session 2]
5 Qs
Mechanical Engineering (ME) 2016 [Session 1]
4 Qs
Mechanical Engineering (ME) 2016 [Session 3]
3 Qs
Mechanical Engineering (ME) 2014 [Session 1]
5 Qs
Mechanical Engineering (ME) 2014 [Session 2]
4 Qs
Mechanical Engineering (ME) 2014 [Session 4]
4 Qs
Mechanical Engineering (ME) 2014 [Session 3]
3 Qs
Mechanical Engineering (ME) 2013 [Session 4]
5 Qs
Mechanical Engineering (ME) 2013 [Session 1]
4 Qs
Mechanical Engineering (ME) 2013 [Session 2]
4 Qs
Mechanical Engineering (ME) 2013 [Session 3]
4 Qs
Mechanical Engineering (ME) 2011
5 Qs
Mechanical Engineering (ME) 2010
8 Qs
Mechanical Engineering (ME) 2009
4 Qs
Mechanical Engineering (ME) 2008
5 Qs
Mechanical Engineering (ME) 2007
8 Qs

Included previous year papers

Newest papers appear first. Sort by year, question coverage or name.

PaperYear / sessionQuestions in this viewOpen
Mechanical Engineering (ME) 202620265View paper
Mechanical Engineering (ME) 202520256View paper
Mechanical Engineering (ME) 202420244View paper
Mechanical Engineering (ME) 202320236View paper
Mechanical Engineering (ME) 2021 [Session 1]20214View paper
Mechanical Engineering (ME) 2020 [Session 1]20204View paper
Mechanical Engineering (ME) 2020 [Session 2]20203View paper
Mechanical Engineering (ME) 2019 [Session 1]20194View paper
Mechanical Engineering (ME) 2019 [Session 2]20195View paper
Mechanical Engineering (ME) 2018 [Session 1]20187View paper
Mechanical Engineering (ME) 2018 [Session 2]20184View paper
Mechanical Engineering (ME) 2016 [Session 1]20164View paper
Mechanical Engineering (ME) 2016 [Session 2]20165View paper
Mechanical Engineering (ME) 2016 [Session 3]20163View paper
Mechanical Engineering (ME) 2014 [Session 1]20145View paper
Mechanical Engineering (ME) 2014 [Session 2]20144View paper
Mechanical Engineering (ME) 2014 [Session 3]20143View paper
Mechanical Engineering (ME) 2014 [Session 4]20144View paper
Mechanical Engineering (ME) 2013 [Session 1]20134View paper
Mechanical Engineering (ME) 2013 [Session 2]20134View paper
Mechanical Engineering (ME) 2013 [Session 3]20134View paper
Mechanical Engineering (ME) 2013 [Session 4]20135View paper
Mechanical Engineering (ME) 201120115View paper
Mechanical Engineering (ME) 201020108View paper
Mechanical Engineering (ME) 200920094View paper
Mechanical Engineering (ME) 200820085View paper
Mechanical Engineering (ME) 200720078View paper

All Fluid Mechanics previous year questions

Practice every matching question in batches of 20, with every available option.

1
2007 · Mechanical Engineering · Fluid Mechanics and Thermal Sciences · Fluid Mechanics
Mechanical Engineering (ME) 2007

Consider an incompressible laminar boundary layer flow over a flat plate of length L, aligned with the direction of an oncoming uniform free stream. If F is the ratio of the drag force on the front half of the plate to the drag force on the rear half, then

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2
2007 · Mechanical Engineering · Fluid Mechanics and Thermal Sciences · Fluid Mechanics
Mechanical Engineering (ME) 2007
In a steady flow through a nozzle, the flow velocity on the nozzle axis is given by \( v = u_0(1+3x/L)i \), where x is the distance along the axis of the nozzle from its inlet plane and L is the length of the nozzle. The time required for a fluid particle on the axis to travel from the inlet to the exit plane of the nozzle is
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3
2007 · Mechanical Engineering · Fluid Mechanics and Thermal Sciences · Fluid Mechanics
Mechanical Engineering (ME) 2007
Consider steady laminar incompressible axi-symmetric fully developed viscous flow through a straight circular pipe of constant cross-sectional area at a Reynolds number of 5. The ratio of inertia force to viscous force on a fluid particle is
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4
2007 · Mechanical Engineering · Fluid Mechanics and Thermal Sciences · Fluid Mechanics
Mechanical Engineering (ME) 2007
The inlet angle of runner blades of a Francis turbine is \( 90^\circ \). The blades are so shaped that the tangential component of velocity at blade outlet is zero. The flow velocity remains constant throughout the blade passage and is equal to half of the blade velocity at runner inlet. The blade efficiency of the runner is
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5
2007 · Mechanical Engineering · Fluid Mechanics and Thermal Sciences · Fluid Mechanics
Mechanical Engineering (ME) 2007
A model of a hydraulic turbine is tested at a head of \( 1/4^{th} \) of that under which the full scale turbine works. The diameter of the model is half of that of the full scale turbine. If N is the RPM of the full scale turbine, then the RPM of the model will be
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6
2007 · Mechanical Engineering · Fluid Mechanics and Thermal Sciences · Fluid Mechanics
Mechanical Engineering (ME) 2007
Which combination of the following statements about steady incompressible forced vortex flow is correct?
P: Shear stress is zero at all points in the flow.
Q: Vorticity is zero at all points in the flow.
R: Velocity is directly proportional to the radius from the centre of the vortex.
S: Total mechanical energy per unit mass is constant in the entire flow field.
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7
2007 · Mechanical Engineering · Fluid Mechanics and Thermal Sciences · Fluid Mechanics
Mechanical Engineering (ME) 2007
The ratio \( V_m / u_o \) is
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8
2007 · Mechanical Engineering · Fluid Mechanics and Thermal Sciences · Fluid Mechanics
Mechanical Engineering (ME) 2007
The ratio \( \frac{p_A - p_B}{\frac{1}{2} \rho u_o^2} \) (where \( p_A \) and \( p_B \) are the pressures at section A and B, respectively, and \( \rho \) is the density of the fluid) is
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9
2008 · Mechanical Engineering · Fluid Mechanics and Thermal Sciences · Fluid Mechanics
Mechanical Engineering (ME) 2008
For the continuity equation given by \(\nabla \cdot \vec{V} = 0\) to be valid, where \(\vec{V}\) is the velocity vector, which one of the following is a necessary condition?
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10
2008 · Mechanical Engineering · Fluid Mechanics and Thermal Sciences · Fluid Mechanics
Mechanical Engineering (ME) 2008
A two dimensional fluid element rotates like a rigid body. At a point within the element, the pressure is 1 unit. Radius of the Mohr's circle, characterizing the state of stress at that point, is
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11
2008 · Mechanical Engineering · Fluid Mechanics and Thermal Sciences · Fluid Mechanics
Mechanical Engineering (ME) 2008
Water, having a density of 1000 kg/m³, issues from a nozzle with a velocity of 10 m/s and the jet strikes a bucket mounted on a Pelton wheel. The wheel rotates at 10 rad/s. The mean diameter of the wheel is 1 m. The jet is split into two equal streams by the bucket, such that each stream is deflected by 120°, as shown in the figure. Friction in the bucket may be neglected. Magnitude of the torque exerted by the water on the wheel, per unit mass flow rate of the incoming jet, is
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12
2008 · Mechanical Engineering · Fluid Mechanics and Thermal Sciences · Fluid Mechanics
Mechanical Engineering (ME) 2008
The radial velocity vr at any radius r, when the gap width is h, is

Question diagram

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13
2008 · Mechanical Engineering · Fluid Mechanics and Thermal Sciences · Fluid Mechanics
Mechanical Engineering (ME) 2008
The radial component of the fluid acceleration at r = R is
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14
2009 · Mechanical Engineering · Fluid Mechanics and Thermal Sciences · Fluid Mechanics
Mechanical Engineering (ME) 2009
Consider steady, incompressible and irrotational flow through a reducer in a horizontal pipe where the diameter is reduced from 20 cm to 10 cm. The pressure in the 20 cm pipe just upstream of the reducer is 150 kPa. The fluid has a vapour pressure of 50 kPa and a specific weight of 5 kN/m³. Neglecting frictional effects, the maximum discharge (in m³/s) that can pass through the reducer without causing cavitation is
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15
2009 · Mechanical Engineering · Fluid Mechanics and Thermal Sciences · Fluid Mechanics
Mechanical Engineering (ME) 2009
You are asked to evaluate assorted fluid flows for their suitability in a given laboratory application. The following three flow choices, expressed in terms of the two-dimensional velocity fields in the xy-plane, are made available. P. \(u = 2y, v = -3x\) Q. \(u = 3xy, v = 0\) R. \(u = -2x, v = 2y\) Which flow(s) should be recommended when the application requires the flow to be incompressible and irrotational?
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16
2009 · Mechanical Engineering · Fluid Mechanics and Thermal Sciences · Fluid Mechanics
Mechanical Engineering (ME) 2009
Water at 25 °C is flowing through a 1.0 km long G.I. pipe of 200 mm diameter at the rate of 0.07 m³/s. If value of Darcy friction factor for this pipe is 0.02 and density of water is 1000 kg/m³, the pumping power (in kW) required to maintain the flow is
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17
2009 · Mechanical Engineering · Fluid Mechanics and Thermal Sciences · Fluid Mechanics
Mechanical Engineering (ME) 2009
The velocity profile of a fully developed laminar flow in a straight circular pipe, as shown in the figure, is given by the expression \(u(r) = -\frac{R^2}{4\mu}\left(\frac{dp}{dx}\right)\left(1 - \frac{r^2}{R^2}\right)\) where \(\frac{dp}{dx}\) is a constant. The average velocity of fluid in the pipe is
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18
2010 · Mechanical Engineering · Fluid Mechanics and Thermal Sciences · Fluid Mechanics
Mechanical Engineering (ME) 2010
The Blasius equation, \( \frac{d^3 f}{d \eta^3} + \frac{f}{2} \frac{d^2 f}{d \eta^2} = 0 \), is a
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19
2010 · Mechanical Engineering · Fluid Mechanics and Thermal Sciences · Fluid Mechanics
Mechanical Engineering (ME) 2010

For the stability of a floating body, under the influence of gravity alone, which of the following is TRUE?

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20
2010 · Mechanical Engineering · Fluid Mechanics and Thermal Sciences · Fluid Mechanics
Mechanical Engineering (ME) 2010
The maximum velocity of a one-dimensional incompressible fully developed viscous flow between two fixed parallel plates is 6 m/s. The mean velocity (in m/s) of the flow is
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Showing 20 of 117 questions