1
GATE ME 2008
MCQ (Single Correct Answer)
+1
-0.3
For a continuity equation given $$\nabla .\overrightarrow V = 0$$ to be valid, $$\overrightarrow V $$ where is the velocity vector, which one of the folllowing is a necessary condition ?
A
Steady flow
B
Irrotational flow
C
Inviscid flow
D
Incompressible flow
2
GATE ME 2007
MCQ (Single Correct Answer)
+1
-0.3
In a steady flow through a nozzle, the flow velocity on the nozzle axis is given by $$u = {u_0}\left( {1 + 3x/L} \right),\,\,$$ 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 .
A
$${L \over {{u_0}}}$$
B
$${L \over {3{u_0}}}ln4$$
C
$${L \over {4{u_0}}}$$
D
$${L \over {2.5{u_0}}}$$
3
GATE ME 2006
MCQ (Single Correct Answer)
+1
-0.3
A two-dimensional flow field has velocities along the $$x$$ and $$y$$ directions given by $$u = {x^2}t$$ and $$v = - 2xyt$$ respectively, where $$t$$ is time. The equation of streamline is
A
$${x^2}y = $$ constant
B
$$x\,{y^2} = $$ constant
C
$$x$$ $$y$$ $$=$$ constant
D
not possible to determine
4
GATE ME 2006
MCQ (Single Correct Answer)
+1
-0.3
In a two-dimensional velocity field with velocities $$u$$ and $$v$$ along $$x$$ and $$y$$ directions respectively, the convective acceleration along the $$x$$-direction is given by
A
$$u{{\partial u} \over {\partial x}} + v{{\partial u} \over {\partial y}}$$
B
$$u{{\partial u} \over {\partial x}} + v{{\partial v} \over {\partial y}}$$
C
$$u{{\partial v} \over {\partial x}} + v{{\partial u} \over {\partial y}}$$
D
$$v{{\partial u} \over {\partial x}} + u{{\partial u} \over {\partial y}}$$
GATE ME Subjects
Turbo Machinery
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
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CBSE
Class 12