Related Questions

The ratio of the wall drag to the form drag in the Stoke's law range (for motion of spherical particles in a stationary fluid) is
A 0.5
B 1
C 2
D 0.33
Drag co-efficient in hindered settling is __________ that in free settling.
A Less than
B Equal to
C Not necessarily greater than
D Always greater than
Drag co-efficient for motion of spherical particles in a stationary fluid in the stoke's law range is
A $$\frac{{24}}{{{{\text{N}}_{{\text{Re,p}}}}}}$$
B $$\frac{{16}}{{{{\text{N}}_{{\text{Re,p}}}}}}$$
C $$\frac{{64}}{{{{\text{N}}_{{\text{Re,p}}}}}}$$
D $$\frac{{48}}{{{{\text{N}}_{{\text{Re,p}}}}}}$$
In Newton's law range, the drag co-efficient for the motion of spherical particle in a stationary fluid is
A 0.44
B 0.044
C 4.4
D 44
In hindered settling, the particles are
A Placed farther from the wall
B Not affected by other particles and the wall
C Near each other
D None of these
In the Newton's law range, the terminal velocity of a solid spherical particle falling through a stationary fluid mass is __________ the fluid viscosity.
A Directly proportional to
B Inversely proportional to
C Inversely proportional to the square root of
D Independent of
In which of the following body shapes, the pressure drag is large compared to the friction drag?
A Stream line body
B Two dimensional body
C Bluff body
D None of these
In Newton's law range, the terminal velocity of a solid spherical particle falling through a stationary fluid mass varies as the __________ of its diameter.
A Inverse
B Square root
C Second power
D First power
The terminal velocity of a solid spherical particle falling through a stationary fluid mass in the Stoke's law range is proportional to the
A Inverse of fluid viscosity
B Square of particle size
C Difference in the densities of the particle & fluid
D All of the above
In a stationary fluid, how does the local pressure of the fluid vary?
A With depth
B In the horizontal direction only
C Both with depth and along horizontal direction
D Neither with depth nor along horizontal direction

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