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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
0.044
4.4
44

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Fluid Mechanics
The value of critical Reynolds number for pipe flow is

1300
10000
None of these
100000

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

Dilatent
Bingham plastic
Newtonion
Pseudoplastic

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

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Fluid Mechanics
The length of the tube necessary for the boundary layer to reach the centre of the tube and for fully developed flow to be established is called the __________ length.

Equivalent
Prandtl mixing
Transition
None of these

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Fluid Mechanics
Which of the following must be followed by the flow of a fluid (real or ideal)? (I) Newton's law of viscosity. (II) Newton's second law of motion. (III) The continuity equation. (IV) Velocity of boundary layer must be zero relative to boundary. (V) Fluid cannot penetrate a boundary.

I, II, III
I, II, V
II, IV, V
II, III, V

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