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Fluid Mechanics

Fluid Mechanics
Velocity at a certain point in case of streamline flow is

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

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Fluid Mechanics
For turbulent fluid flow in pipe, the expression for Prandtl one seventh power law is (where, r = pipe radius, x = distance).

V/Vmax = (x/r)1/7
V/Vmax = (x.r)1/7
V/Vmax = (r/x)1/7
None of these

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Fluid Mechanics
Velocity of liquid hydrocarbon fuels in a pipeline can not be measured by magnetic flowmeters, because their __________ is very low/small.

Electrical resistivity
Thermal conductivity
Specific gravity
Electrical conductivity

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Fluid Mechanics
Reynolds number for flow of water at room temperature through 2 cm dia pipe at an average velocity of 5 cm/sec is around

10
1000
2000
100

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Fluid Mechanics
A hydraulic ram acts as a/an __________ pump.

Impulse
Centrifugal
Parallel cylinder
Reciprocating

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Fluid Mechanics
Bernoulli's equation is not applicable, when the flow is

Irrotational
All of these
Incompressible
Viscous

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