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Fluid Mechanics

Fluid Mechanics
The resistance wire used in a hot wire anemometer for conducting electrical current is made of

Copper
Aluminium
Chromium
Tungsten

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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).

0.24
0.44
24000
24

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Fluid Mechanics
Applying a pressure drop across a capillary results in a volumetric flow rate 'Q' under laminar flow conditions. The flow rate for the same pressure drop, in a capillary of the same length but half the radius is

Q/2
Q/16
Q/8
Q/4

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Fluid Mechanics
Capillary tube method of viscosity measurement is based on the

None of these
Hagen-Poiseulle's equation
Navier-stokes equation
Stoke's law

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Fluid Mechanics
The terminal velocity of a solid spherical particle falling through a stationary fluid mass in the Stoke's law range is proportional to the

Inverse of fluid viscosity
Square of particle size
All of these
Difference in the densities of the particle & fluid

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Fluid Mechanics
The capacity of an accumulator is the maximum

Energy which it can store
Liquid which it can store
Discharge which it can deliver
None of these

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