Fluid Mechanics mcqs

Friction Factor For A Hydraulically Smooth Pipe At Nre = 2100 Is F1. If The Pipe Is Further Smoothened (I.E., Roughness Is Reduced), The Friction Factor At The Same Value Of Nre, Will-----------?

Friction Factor For A Hydraulically Smooth Pipe At Nre = 2100 Is F1.

Remain Unchanged

Or Decrease Depending On The Pipe Material

Decrease

Increase

For Turbulent Flow Of An Incompressible Fluid Through A Pipe, The Flow Rate „Q‟ Is Proportional To (Δ P)N, Where Δp Is The Pressure Drop. The Value Of Exponent ‘N’ Is---------?

For Turbulent Flow Of An Incompressible Fluid Through A Pipe, The Flow Rate „Q‟ Is Proportional To (Δ P)N, Where Δp Is The Pressure Drop.

0

> 1

1

< 1

For Turbulent Flow In Smooth Circular Pipe, The Velocity Distribution Is A Function Of The Distance ‘D’ Measured From The Wall Of The Pipe And The Friction Velocity ‘V’, And It Follows A --------- Relationship?

For Turbulent Flow In Smooth Circular Pipe, The Velocity Distribution Is A Function Of The Distance ‘D’ Measured From The Wall Of The Pipe And The Frict

Linear

Hyperbolic

Logarithmic

Parabolic

For The Same Terminal Conditions And Valve Size, The Pressure Drop In A Fully Opened Globe Valve As Compared To That In A Gate Valve Is-----------?

For The Same Terminal Conditions And Valve Size, The Pressure Drop In A Fully Opened Globe Valve As Compared To That In A Gate Valve Is-----------?

More

Equal

Either Or B.; Depends On The Viscosity Of The Fluid

Less

For Motion Of Spherical Particles In A Stationary Fluid, The Drag Co-Efficient In Hindered Settling Compared To That In Free Settling Is -----------?

For Motion Of Spherical Particles In A Stationary Fluid, The Drag Co-Efficient In Hindered Settling Compared To That In Free Settling Is -----------?

Less

Equal

Or Less, Depending On The Type Of Particle

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