Fluid Mechanics mcqs

Heat Conduction To Viscosity Of A Fluid

Cp/Cv Of A Fluid

Inertial Force To Elastic Force In The Fluid Flow

Elastic Force To Pressure Force In The Fluid Flow

Zero At The Pipe Wall

Applicable To Laminar Flow Problems

A Universal Constant

None Of These

Directly As

None Of These

As Cube Of

As Square Of

Speed Of Impeller, Diameter Of Impeller & Viscosity

Density & Viscosity Of Fluid Only

None Of These

Density Of Fluid, Viscosity Of Fluid & Impeller Dia Only

Nd2

N2d

N2d3

N3d5

Drag Stress To Inertial Stress

Inertial Stress To Drag Stress

Inertial Stress To Gravitational Stress

Gravitational Stress To Drag Stress

More Than

Less Than

Same As

Data Insufficient, Cannot Be Predicted

None Of These

Irrotational

Turbulent

Steady

Compressible Fluids With Shear

Compressible Fluids With No Shear

Incompressible Fluids With No Shear

Incompressible Fluids With Shear

Irrotational And Frictional Flow

Irrotational And Frictionless Flow

One In Which Dissipation Of Mechanical Energy Into Heat Occurs

Formation Of Eddies Within The Stream

Multiplying With Specific Gravity

Dividing By Specific Gravity

Multiplying With Density (Gm/C.C)

Dividing By Density (Gm/C.C)

Viscous Mass

Slurries

None Of These

Higher Pressure

Average Velocity

Pressure

Point Velocity

Average Flow Rate

Outside Diameter

None Of These

Inside Diameter

Schedule Number

Elevation & Pressure

Elevation & Kinetic Energy

None Of These

Kinetic Energy & Pressure

The Ratio Of Average Velocity To The Maximum Velocity For Turbulent Flow Of Newtonian Fluidin Circular Pipes Is 0.5

Hagen-Poiseuille Equation Is Applicable To The Laminar Flow Of Newtonian Fluids

The Newtonian Fluid Velocity In A Circular Pipe Flow Is Maximum At The Centre Of The Pipe

Navier-Stokes Equation Is Applicable To The Analysis Of Viscous Flows

Δp/L = 150 [(1 – Ε)/Ε3]. (Μ.V0

2/G2cd)

Δp = 32 (Μlv/Gc. D2)

Δp/Ρ = 4f (L/D) (V2/2gc)

Transition Length For Turbulent Flow Of Newtonian Fluids In A Smooth Pipe Of Diameter ‘D’ Is

The Length Of Entrance Region Of Pipe, In Which Full Development Of Fluid Flow Takes Place

Such That Velocity Profile Does Not Change Downstream, Is Called The Transition Length

Transition Length For Laminar Flow Of Newtonian Fluids In A Pipe Of Diameter ‘D’ Is Equal To

10

1

30

50

10

1

40

70

Parabola (Vertex Being At The Opening)

Hyperbola

Zig-Zag Path (Which Is Geometrically Undefined)

Horizontal Straight Line

None Of These

At Rest

And When The Frictionless Fluid Is In Motion

Frictionless And At Rest

None Of These

Static

Uniformly Moving

Accelerating Frictionless

Bingham Plastic

Pseudo-Plastic

Newtonian

Dilatant

Rotameter

Flow Nozzle

Venturimeter

Orificemeter