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FLUID MECHANICS

Fluid Mechanics
In frictional fluid flow, the quantity, P/ρ + V²/2gc + gz/gc, is

None of these
Not constant along a streamline
Constant along a streamline
Increased in the direction of flow

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Fluid Mechanics
Rotary vacuum pumps can reduce the absolute pressure to as low as __________ mm Hg.

1
0.01
0.1
0.001

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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
As per Newton's law of viscosity, the shear stress for a given rate of angular deformation of fluid is proportional to(where, μ = fluid viscosity)

1/μ²
μ²
1/μ
μ

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Fluid Mechanics
Toothpaste is a

Newtonion liquid
Dilatent
Bingham plastic
Pseudoplastic

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