The Lift Of A Balloon Is---------?
The Lift Of A Balloon Is---------?
None Of These | |
Due To The Weight Of The Atmospheric Air, That It Displaces | |
Not Dependent On The Temperature Of The Atmosphere | |
Increased, As It Rises To A Higher Altitude |
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Fluid Mechanics mcqs
The Length Of The Tube Necessary For The Boundary Layer To Reach The Centre Of The Tube And For Fully Developed Flow To Be Established Is Called The --------- Length?
The Length Of The Tube Necessary For The Boundary Layer To Reach The Centre Of The Tube And For Fully Developed Flow To Be Established Is Called The ---
Prandtl Mixing | |
Transition | |
None Of These | |
Equivalent |
The Kinetic Energy Correction Factor For Velocity Distribution Of Laminar Flow Is---------?
The Kinetic Energy Correction Factor For Velocity Distribution Of Laminar Flow Is---------?
1 | |
0.5 | |
2 | |
1.66 |
The Inherent Characteristic Of An Equal Percentage Valve Relating Flow Rate ‘Q’ With Valve Stem Movement ‘X’ Are Described By The Equation---------?
The Inherent Characteristic Of An Equal Percentage Valve Relating Flow Rate ‘Q’ With Valve Stem Movement ‘X’ Are Described By The Equation---------?
Dq/Dx = K | |
.Q | |
/Q | |
Q2 |
The Hydrodynamic And Thermal Boundary Layers Will Merge, When --------?
The Hydrodynamic And Thermal Boundary Layers Will Merge, When --------?
Nusselt Number Tends To Infinity | |
Prandtl Number Is One | |
Archimedes Number Is Greater Than 10000 | |
Schmidt Number Tends To Infinity |
The Hydraulic Radius For Flow In A Rectangular Duct Of Cross-Sectional Dimension H, W Is-----------?
The Hydraulic Radius For Flow In A Rectangular Duct Of Cross-Sectional Dimension H, W Is-----------?
Hw/2 (H + W)2 | |
Hw/4 (H + W)2 | |
2hw/(H + W) | |
√(Hw/Π) |
The Hydraulic Diameter Of An Annulus Of Inner And Outer Radii Ri And Ro Respectively Is-----------?
The Hydraulic Diameter Of An Annulus Of Inner And Outer Radii Ri And Ro Respectively Is-----------?
2(Ro-Ri) | |
√(Ro-Ri) | |
4(Ro-Ri) | |
Ro + Ri |
The Head Loss In Turbulent Flow In Pipe Is Proportional To(Where, V = Velocity Of Fluid Through The Pipe) ?
The Head Loss In Turbulent Flow In Pipe Is Proportional To(Where, V = Velocity Of Fluid Through The Pipe) ?
1/ | |
V | |
1/V | |
V2 |
The Head Loss In Turbulent Flow In A Pipe Varies---------?
The Head Loss In Turbulent Flow In A Pipe Varies---------?
Directly As The Velocity | |
Approximately As The Square Of The Velocity | |
Inversely As The Square Of The Velocity | |
Inversely As The Square Of The Diameter |
The Head Loss In Turbulent Flow In A Pipe Varies--------?
The Head Loss In Turbulent Flow In A Pipe Varies--------?
Inversely As The Velocity | |
As (Velocity)2 | |
As Velocity | |
Inversely As The Square Of Diameter |
The Head Loss Due To Sudden Expansion Is----------?
The Head Loss Due To Sudden Expansion Is----------?
(V1 – V2)/2gc | |
(V1 – V2)2/2gc | |
(V12 – V22)/Gc | |
(V12 – V22)/2gc |
The Head Loss Due To Sudden Contraction Is Proportional To-----------?
The Head Loss Due To Sudden Contraction Is Proportional To-----------?
Velocity | |
None Of These | |
Velocity Head | |
Turbulence |
The Head Developed By A Centrifugal Pump Is Largely Determined By The--------?
The Head Developed By A Centrifugal Pump Is Largely Determined By The--------?
Vapour Pressure Of The Liquid | |
Power Of The Pump | |
Nature Of The Liquid Being Pumped | |
Angle Of The Vanes And The Speed Of The Tip Of The Impeller |
The General Relationship Between Speed N, Head H, Power P And Discharge Q For A Centrifugal Pump Is---------?
The General Relationship Between Speed N, Head H, Power P And Discharge Q For A Centrifugal Pump Is---------?
Q∝N3 : H∝N : P∝N2 | |
Q∝N : H∝N2 : P∝N3 | |
Q∝N2 : H∝N3 : P∝N | |
Q∝N : H∝N3 : P∝N2 |
The Frictional Resistance In Laminar Flow Does Not Depend On The---------?
The Frictional Resistance In Laminar Flow Does Not Depend On The---------?
Flow Velocity | |
Pressure Of Flow | |
Fluid Temperature | |
Area Of Surface In Contact |
The Friction Factor Is-----------?
The Friction Factor Is-----------?
None Of These | |
Not Dependent On The Roughness Of The Pipe | |
Not Dimensionless | |
Always Inversely Proportional To The Reynolds Number |
The Friction Factor For Turbulent Flow In A Hydraulically Smooth Pipe----------?
The Friction Factor For Turbulent Flow In A Hydraulically Smooth Pipe----------?
Does Not Depend On Reynolds Number | |
Depends Only On Reynolds Number | |
Depends On The Roughness | |
None Of These |
The Fluid Velocity Varies As The Square Root Of The Cylindrical Pipe Diameter In Case Of Steady State Laminar Flow At Constant Pressure Drop Of --------- Fluid?
The Fluid Velocity Varies As The Square Root Of The Cylindrical Pipe Diameter In Case Of Steady State Laminar Flow At Constant Pressure Drop Of --------
Pseudo-Plastic | |
Dilatent | |
Newtonian | |
Bingham Plastic |
The Fluid Velocity Varies As The Square Of The Cylindrical Pipe Diameter, In Case Of Steady State Laminar Flow At Constant Pressure Drop, For ---------- Fluid?
The Fluid Velocity Varies As The Square Of The Cylindrical Pipe Diameter, In Case Of Steady State Laminar Flow At Constant Pressure Drop, For ----------
Newtonian | |
Pseudo-Plastic | |
Dilatant | |
Non-Newtonian |
The Fluid Velocity Varies As The Cube Of The Cylindrical Pipe Diameter In Case Of Steady State Laminar Flow At Constant Pressure Drop For -------- Fluid?
The Fluid Velocity Varies As The Cube Of The Cylindrical Pipe Diameter In Case Of Steady State Laminar Flow At Constant Pressure Drop For -------- Fluid
Pseudo-Plastic | |
Newtonian | |
Dilatent | |
Bingham Plastic |
The Fluid Property, Due To Which, Mercury Does Not Wet The Glass Is----------?
The Fluid Property, Due To Which, Mercury Does Not Wet The Glass Is----------?
Cohesion | |
Surface Tension | |
Viscosity | |
Adhesion |
The Fluid Property Which Matters For Falling Rain Drops To Acquire Spherical Shape Is Its----------?
The Fluid Property Which Matters For Falling Rain Drops To Acquire Spherical Shape Is Its----------?
Pressure | |
Height Of Descend | |
Viscosity | |
Surface Tension |
The Fluid Jet Discharging From A 2″ Diameter Orifice Has A Diameter Of 1.75″ At Its Venacontracta. The Co-Efficient Of Contraction Is-----------?
The Fluid Jet Discharging From A 2″ Diameter Orifice Has A Diameter Of 1.75″ At Its Venacontracta. The Co-Efficient Of Contraction Is-----------?
0.766 | |
0.87 | |
1.3 | |
None Of These |
The Fluid In Which The Shearing Stress Within It Is Proportional To The Velocity Gradient Across The Sheared Section, Is Called A --------- Fluid?
The Fluid In Which The Shearing Stress Within It Is Proportional To The Velocity Gradient Across The Sheared Section, Is Called A --------- Fluid?
Bingham | |
None Of These | |
Perfect | |
Newtonian |
The Flow Of Gas Along A Pipe In The Direction Of Decreasing Pressure Causes Decrease In Its----------?
The Flow Of Gas Along A Pipe In The Direction Of Decreasing Pressure Causes Decrease In Its----------?
Viscosity | |
Specific Volume | |
Velocity | |
None Of These |