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Fluid Mechanics
Fluid Properties
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Boundary Layer
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Turbulent Flow
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Fluid Dynamics
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Laminar Flow
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Fluid Kinematics
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Fluid Statics
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1
GATE ME 2023
MCQ (Single Correct Answer)
+1
-0.33
Air (density = 1.2 kg/m3, kinematic viscosity = 1.5 × 10-5 m2/s) flows over a flat plate with a free-stream velocity of 2 m/s. The wall shear stress at a location 15 mm from the leading edge is τw. What is the wall shear stress at a location 30 mm from the leading edge?
A
Ï„w/2
B
√2τw
C
2 Ï„w
D
τw/√2
2
GATE ME 2015 Set 2
MCQ (Single Correct Answer)
+1
-0.3
Within a boundary layer for a steady incompressible flow, the Bernoulli equation
A
holds because the flow is steady
B
holds because the flow is incompressible
C
holds because the flow is transitional
D
does not hold because the flow is frictional
3
GATE ME 2007
MCQ (Single Correct Answer)
+1
-0.3
Consider an incompressible laminar boundary layer flow over a flat plate of length $$L$$, aligned with the direction of an incoming 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
A
$$F < {\raise0.5ex\hbox{$\scriptstyle 1$} \kern-0.1em/\kern-0.15em \lower0.25ex\hbox{$\scriptstyle 2$}}$$
B
$$F = {\raise0.5ex\hbox{$\scriptstyle 1$} \kern-0.1em/\kern-0.15em \lower0.25ex\hbox{$\scriptstyle 2$}}$$
C
$$F=1$$
D
$$F>1$$
4
GATE ME 2002
MCQ (Single Correct Answer)
+1
-0.3
Flow separation in flow past a solid object is caused by
A
A reduction of pressure to vapour pressure
B
A negative pressure gradient
C
A positive pressure gradient
D
The boundary layer thickness reducing to zero
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Questions Asked from Marks 1
GATE ME 2023 (1) GATE ME 2015 Set 2 (1) GATE ME 2007 (1) GATE ME 2002 (2) GATE ME 1994 (2) GATE ME 1990 (1) GATE ME 1987 (1)
GATE ME Subjects
Engineering Mechanics
Machine Design
Strength of Materials
Heat Transfer
Production Engineering
Industrial Engineering
Turbo Machinery
Theory of Machines
Engineering Mathematics
Fluid Mechanics
Thermodynamics
General Aptitude