Category: Fluid Mechanics for Chemical

A. Hot wire anemometer
B. Notch
C. Rotameter
D. Segmental orifice

A. f1 = f2
B. f1 < f2
C. f1 > f2
D. Data not sufficient to relate f1 & f2

A. That corresponding to static bed
B. That corresponding to completely fluidised bed
C. The porosity of the bed when true fluidisation begins
D. Less than that of the’ static bed

A. Axial
B. Radial
C. Mixed
D. None of these

A. Shear stress over the cross-section is proportional to the distance from the surface of the pipe
B. Surface of velocity distribution is a paraboloid of revolution, whose volume equals half the
volume of circumscribing cylinder
C. Velocity profile varies hyperbolically and the shear stress remains constant over the crosssection
D. Average flow occurs at a radial distance of 0.5 r from the centre of the pipe (r = pipe radius)

A. 2
B. 2
D. 1/2

A. Net rate of inflow into any small volume must be zero
B. Energy is not constant along a streamline
C. Energy is constant along a streamline
D. There exists a velocity potential

A. Rate of transfer of molecular momentum
B. Cohesion
C. Both A. and B.
D. Neither A. nor B.

A. Increasing the acceleration head
B. Making the friction in pipe uniform
C. Decreasing the acceleration head
D. None of these

A. Minimum liquid cross-section
B. More diameter compared to orifice diameter
C. Minimum velocity of fluid stream
D. None of these