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FLUID MECHANICS

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

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

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

0.001
0.1
1
0.01

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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

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

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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/μ
1/μ²
μ²
μ

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Fluid Mechanics
Toothpaste is a

Newtonion liquid
Bingham plastic
Pseudoplastic
Dilatent

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