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FLUID MECHANICS

Fluid Mechanics
In power law, ζ = A (du/dy)² + B , then the fluid is

Dilatant
Rheopectic
Newtonian
Thixotropic

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Fluid Mechanics
In deriving Bernoulli's equation, fluid is assumed to be

None of these
Steady, density being pressure dependent, frictionless
Uniform, steady, incompressible, along a streamline
Incompressible, frictionless, steady, along a streamline

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Fluid Mechanics
Cp/Cv is termed as

Adiabatic constant
Weber number
Prandtl number
Mach number

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Fluid Mechanics
The equivalent diameter for flow through a rectangular duct of width B and height H is

4HB/(H + B)
HB/(H + B)
2HB/(H + B)
HB/2(H + B)

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Fluid Mechanics
As the velocity V and thus the Reynolds number of a flow past a sphere increases from very low value, the drag force for Re << 1

Increases linearly with V
Decreases as V²
None of these
Decreases linearly with V

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