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Fluid Mechanics

Fluid Mechanics
The ratio of actual discharge to theoretical discharge through an orifice is equal to

Cc . Cv
Cv . Cd
Cc . Cd
Cd/Cv

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Fluid Mechanics
Prandtl mixing length is

Applicable to laminar flow problems
Zero at the pipe wall
A universal constant
None of these

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Fluid Mechanics
In magnetic flow meters, voltage generation is

Neither A nor B
Due to the motion of conducting fluid through an externally generated uniform field
Both A and B
Proportional to the fluid velocity

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Fluid Mechanics
Schedule number of a pipe, which is a measure of its wall thickness, is given by

10000 P'/S
100 P'/S
1000 S/P'
1000 P'/S

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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

V1.8
V2
V-0.2
V2.7

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Fluid Mechanics
The terminal velocity of a solid spherical particle falling through a stationary fluid mass in the Stoke's law range is proportional to the

Square of particle size
All of these
Difference in the densities of the particle & fluid
Inverse of fluid viscosity

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