1
GATE ME 2007
MCQ (Single Correct Answer)
+2
-0.6
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: Velocity is directly proportional to the radius from the centre of the vortex.
R: Total mechanical energy per unit mass is constant in the entire flow field.
S: Total mechanical energy per unit mass is constant in the entire flow field.

A
$$P$$ and $$Q$$
B
$$R$$ and $$S$$
C
$$P$$ and $$R$$
D
$$P$$ and $$S$$
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 2007
MCQ (Single Correct Answer)
+2
-0.6
Oil in a hydraulic cylinder is compressed from an initial volume $$2{m^3}$$ to $$1.96{m^3}$$. If the pressure of oil in the cylinder changes from $$40$$ $$MPa$$ to $$80$$ $$MPa$$ during compression, the bulk modulus of elasticity of oil is .........
A
$$1000$$ $$MPa$$
B
$$2000$$ $$MPa$$
C
$$4000$$ $$MPa$$
D
$$8000$$ $$MPa$$
4
GATE ME 2007
MCQ (Single Correct Answer)
+2
-0.6
Newton's law of viscosity states that the shear stress in a fluid is proportional to :
A
The velocity of the fluid.
B
The time rate of change of velocity of the fluid.
C
The rate of change of velocity of the fluid with the height of fluid film.
D
The square of the velocity of the fluid.
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12