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Fluid Mechanics

Fluid Mechanics
In Newton's law range, the drag co-efficient for the motion of spherical particle in a stationary fluid is

0.44
44
0.044
4.4

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Fluid Mechanics
The fluid velocity varies as the cube of the cylinderical pipe diameter in case of steady state laminar flow at constant pressure drop for __________ fluid.

Dilatent
Newtonion
Pseudoplastic
Bingham plastic

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Fluid Mechanics
Unit of mass velocity is

Kg/hr
Kg/m²
Kg/m². hr
Kg/m³. hr

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Fluid Mechanics
Ratio of inertial forces to surface tension forces is called the __________ number.

Mach
Weber
Froude
Euler

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Fluid Mechanics
Schedule number of a pipe, which is a measure of its wall thickness, is given by

100 P'/S
10000 P'/S
1000 P'/S
1000 S/P'

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Fluid Mechanics
Velocity distribution for flow between two fixed parallel plates

Varies parabolically across the section
Is constant over the entire cross-section
None of these
Is zero at the plates and increases linearly to the midplane

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