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Fluid Mechanics

Fluid Mechanics
Rubber latex is an example of a __________ .fluid.

Dilatent
Pseudoplastic
Bingham plastic
Newtonion

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Fluid Mechanics
The hydrodynamic and thermal boundary layers will merge, when

Schmidt number tends to infinity
Nusselt number tends to infinity
Prandtl number is one
Archimedes number is greater than 10000

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Fluid Mechanics
Terminal velocity is

A fluctuating velocity
Attained after moving one-half of total distance
A constant velocity with no acceleration
None of these

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Fluid Mechanics
The ratio of actual discharge to theoretical discharge through an orifice is equal to

Cc . Cd
Cd/Cv
Cv . Cd
Cc . Cv

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Fluid Mechanics
Pressure drop in a fluidised bed reactor is __________ that in a similar packed bed reactor.

Same as
None of these
More than
Less than

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Fluid Mechanics
The drag co-efficient for a bacterium moving in water at 1 mm/s, will be of the following order of magnitude (assume size of the bacterium to be 1 micron and kinematic viscosity of water to be 10⁻⁶m²/s).

0.44
24
24000
0.24

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