1
GATE ME 2001
+2
-0.6
The $$2$$ - $$D$$ flow with, velocity $$\overrightarrow v = \left( {x + 2y + 2} \right)\overrightarrow i + \left( {4 - y} \right)\overrightarrow j$$ is
A
Compressible and irrotational
B
Compressible and not irrotational
C
Inompressible and
D
Inompressible and not irrotational
2
GATE ME 1995
+2
-0.6
The velocity components in the $$x$$ and $$y$$ directions are given by $$u = \lambda x{y^3} - {x^2}y,$$ $$v = x{y^2} - {3 \over 4}{y^4}.$$ The value of $$\lambda$$ for a possible flow field involving an incompressible fluid is
A
$$- {3 \over 4}$$
B
$$- {4 \over 3}$$
C
$${4 \over 3}$$
D
$$3$$
3
GATE ME 1993
+2
-0.6
A velocity field is given as $$\overrightarrow V = 3{x^2}y\widehat i - 6xyz\widehat k$$\$
Where $$x,y,z$$ are in $$m$$ and $$V$$ $$m/s.$$ Determine if

(i) It represents an incompressible flow
(ii) The flow is irrotational
(iii) The flow is steady .

A
(i) and (iii)
B
(i) and (ii)
C
(ii) and (iii)
D
(i) only
4
GATE ME 1989
+2
-0.6
The stream function in a two dimensional flow field is given by $$\Psi = {x^2} - {y^2}$$
The magnitude of the velocity at point $$(1,1)$$ is
A
$$2$$
B
$$2\sqrt 2$$
C
$$4$$
D
$$8$$
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
EXAM MAP
Joint Entrance Examination