Prandtl Number Is A Measure Of The----------?
Prandtl Number Is A Measure Of The----------?
Cp/Cv Of A Fluid | |
Heat Conduction To Viscosity Of A Fluid | |
Inertial Force To Elastic Force In The Fluid Flow | |
Elastic Force To Pressure Force In The Fluid Flow |
پاک اسٹڈی لائبریری اپنی خدمات کو بہتر کرنے کے لئے نئے سوفٹ وئیر انسٹال کررہی ہے ۔ اس لئے آئندہ کچھ دن آپ کو کچھ صفحات تک رسائی میں مشکلات کا سامنا ہوسکتا ہے ۔ جس کے لئے ہم معذرت خواہ ہیں۔
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Prandtl Number Is A Measure Of The----------?
Cp/Cv Of A Fluid | |
Heat Conduction To Viscosity Of A Fluid | |
Inertial Force To Elastic Force In The Fluid Flow | |
Elastic Force To Pressure Force In The Fluid Flow |
Prandtl Mixing Length Is-----------?
Applicable To Laminar Flow Problems | |
A Universal Constant | |
Zero At The Pipe Wall | |
None Of These |
Power Requirement Of Fans Having Constant Wheel Diameter Varies --------- Fan Speed?
As Cube Of | |
None Of These | |
As Square Of | |
Directly As |
Power Required For Mixing Newtonian Fluids Is A Function Of The ---------?
Density Of Fluid, Viscosity Of Fluid & Impeller Dia Only | |
Speed Of Impeller, Diameter Of Impeller & Viscosity | |
Density & Viscosity Of Fluid Only | |
None Of These |
Power Required By A Centrifugal Pump Is Proportional To (Where, D = Diameter, N = R.P.M) --------?
N2d | |
N2d3 | |
N3d5 | |
Nd2 |
Power Number Is The Ratio Of--------?
Gravitational Stress To Drag Stress | |
Drag Stress To Inertial Stress | |
Inertial Stress To Gravitational Stress | |
Inertial Stress To Drag Stress |
Power Loss In An Orificemeter Is --------- That In A Venturimeter?
Less Than | |
Data Insufficient, Cannot Be Predicted | |
Same As | |
More Than |
Potential Function Is Applicable Only For ---------- Flow?
Turbulent | |
Steady | |
Irrotational | |
None Of These |
Potential Flow Is The Flow Of----------?
Compressible Fluids With Shear | |
Incompressible Fluids With No Shear | |
Incompressible Fluids With Shear | |
Compressible Fluids With No Shear |
Potential Flow Is Characterised By The-----------?
Formation Of Eddies Within The Stream | |
Irrotational And Frictional Flow | |
One In Which Dissipation Of Mechanical Energy Into Heat Occurs | |
Irrotational And Frictionless Flow |
Poise Is Converted Into Stoke By -----------?
Dividing By Specific Gravity | |
Multiplying With Density (Gm/C.C) | |
Multiplying With Specific Gravity | |
Dividing By Density (Gm/C.C) |
Plunger Pumps Are Used For----------?
Higher Pressure | |
Viscous Mass | |
Slurries | |
None Of These |
Pitot Tube Measures The ---------- Of A Fluid?
Average Velocity | |
Pressure | |
Point Velocity | |
Average Flow Rate |
Pipes Having Diameter 14 Inches Or More Are Designated By Their---------?
None Of These | |
Inside Diameter | |
Schedule Number | |
Outside Diameter |
Piezometric Head Is The Sum Of The ---------- Heads?
Elevation & Pressure | |
None Of These | |
Elevation & Kinetic Energy | |
Kinetic Energy & Pressure |
Pick Out The Wrong Statement Pertaining To Fluid Flow ?
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 | |
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 |
Pick Out The Hagen-Poiseuille‟S Equation ?
Δp/Ρ = 4f (L/D) (V2/2gc) | |
Δp = 32 (Μlv/Gc. D2) | |
2/G2cd) | |
Δp/L = 150 [(1 – Ε)/Ε3]. (Μ.V0 |
Pick Out The Correct Statement Pertaining To Transition/ Entrance Length In Fluid Flow ?
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 |
Permanent Pressure Loss In A Well Designed Venturimeter Is About --------- Percent Of The Venturi Differential?
10 | |
50 | |
30 | |
1 |
Permanent Loss In A Venturimeter Is About ----------- Percent Of The Pressure Drop In The Upstream Cone?
70 | |
1 | |
10 | |
40 |
Path Followed By Water Jet Issuing From The Bottom Of A Water Tank Will Be A----------?
Horizontal Straight Line | |
Zig-Zag Path (Which Is Geometrically Undefined) | |
Parabola (Vertex Being At The Opening) | |
Hyperbola |
Pascal’S Law Is Valid, Only When The Fluid Is---------?
None Of These | |
At Rest | |
Frictionless And At Rest | |
And When The Frictionless Fluid Is In Motion |
Pascal Law Is Not Applicable For A/An -------- Fluid?
None Of These | |
Accelerating Frictionless | |
Static | |
Uniformly Moving |
Paper Pulp Is An Example Of --------- Fluid?
Dilatant | |
Pseudo-Plastic | |
Bingham Plastic | |
Newtonian |
Out Of The Following Flow Measuring Devices, Which One Incurs The Maximum Installation Cost As Well As Pressure Loss ?
Venturimeter | |
Rotameter | |
Flow Nozzle | |
Orificemeter |