1
GATE ME 2004
MCQ (Single Correct Answer)
+2
-0.6
For a fluid flow through a divergent pipe of length $$L$$ having inlet and outlet radii of $${R_1}$$ and $${R_2}$$ respectively and a constant flow rate of $$Q,$$ assuming the velocity to be axial and uniform at any cross- section , the acceleration at the exit is
A
$${{2Q\left( {{R_1} - {R_2}} \right)} \over {\pi LR_2^3}}$$
B
$${{2{Q^2}\left( {{R_1} - {R_2}} \right)} \over {\pi LR_2^3}}$$
C
$${{2{Q^2}\left( {{R_1} - {R_2}} \right)} \over {{\pi ^2}L{R_2}^5}}$$
D
$${{2{Q^2}\left( {{R_2} - {R_1}} \right)} \over {{\pi ^2}L{R_2}^5}}$$
2
GATE ME 2001
MCQ (Single Correct Answer)
+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
3
GATE ME 1995
MCQ (Single Correct Answer)
+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
$$3$$
4
GATE ME 1993
MCQ (Single Correct Answer)
+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
GATE ME Subjects
Turbo Machinery
EXAM MAP