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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
Velocity at a certain point in case of streamline flow is

Neither A nor B
Independent of time
Both A & B
Constant

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Fluid Mechanics
A double acting reciprocating pump compared to a single acting pump (of almost same size working under same pressure levels) would give almost double

Head
None of these
Discharge
Efficiency

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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

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

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Fluid Mechanics
Specific speed of a centrifugal pump relates it with another pump having the

Geometrical similarity
Same speed
Dynamic similarity
Same efficiency

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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.

Transition
None of these
Equivalent
Prandtl mixing

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