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Fluid Mechanics

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

Newtonion
Pseudoplastic
Bingham plastic
Dilatent

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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
None of these
Decreases as V²
Decreases linearly with V

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Fluid Mechanics
If two capillary tubes of dia 0.5 mm and 1 mm are dipped in a pot containing mercury, then the rise of mercury is

Greater in 1 mm dia tube
Greater in 0.5 mm dia tube
Zero in both the tubes
Same in both the tubes

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Fluid Mechanics
Water hammer is caused, when water flowing in a pipe is suddenly brought to rest by closing the valve. The extent of pressure thus produced due to water hammer depends on the

Pipe length
Fluid velocity in the pipe
Time taken to close the valve
All of these

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Fluid Mechanics
Interstage coolers are provided in a multistage compressor to

None of these
Save power in compressing a given volume to a given pressure
Cool the delivered air
Achieve the exact delivery pressure

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Fluid Mechanics
Pressure drop (Δp) for a fluid flowing in turbulent flow through a pipe is a function of velocity (V) as

V-0.2
V2.7
V1.8
V2

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