Che-16 dry run
Fluid Dynamics Challenge
Test your knowledge on fluid dynamics with this comprehensive 30-question quiz! Designed for students and professionals alike, this quiz covers fundamental concepts and principles in fluid mechanics.
Topics include:
- Density and pressure relationships
- Viscosity and flow dynamics
- Fluid properties and behaviors
- Applications in engineering
Local rate of change of density with time at a fixed point with coordinate x,y,z
Partial Time
Substantial Time
Total Time
Laplacian operator is present in the mass continuity equation
True
False
In adiabatic flow in a uniform pipe, velocity in the pipe cannot exceed velocity of sound
True
False
Is a force exerted by a fluid against wall on its containers
Friction force
Pressure
Solid surface force
An elastic solid deforms by an amount proportional to the applied stress
True
False
A measure of the ratio of inertial forces to viscous forces.
Fanning friction number
Reynolds number
Concentration difference
He distribution of shear stress for laminar flow in a pipe varies parabolically with the radius
True
False
Property of fluid which gives rise to the force that resists the relative movement of adjacent fluid
Viscosity
Temperature
Density
Maximum velocity is always at the wall surface.
True
False
The viscosity of gases increases with temperature and is approximately independent of pressure.
True
False
A fluid that will deform continuously when subjected to shear force.
Viscosity
Fluid
Density
The rate at which the fluid feforms continously depends not only in viscosity but also in density
True
False
Important theory applied in sedimentation.
Mixing-length Theory
Stokes' Law
Newton's Law
X, Y, Z, and T are dependent variables of equation of change
True
False
Join two pieces of pipe
Elbows
Tees
Couplings
Permanent pressure loss in venturi meter is about _______ of the total pressure drop across the meter.
20%
30%
10%
Energy converted to heat or internal energy is lost work or a loss in mechanical energy which is caused by increase in velocity.
True
False
__________ states that there is an inverse relationship between average velocity and area of flow in incompressible fluid.
Navier-Stokese Equation
Hagen-Poiseuille Equation
Newton's Law of Viscosity
In a sudden enlargement loss of friction, if cross-section of pipe enlarges or decreases gradually, extra losses of friction are incurred.
True
False
The General Meter Equation permits calculation of fluid velocity and mass flowrate on orifice meters
True
False
He hydraulic mean diameter for an open rectangular ditch of a depth D and width 3D is 1.5D.
True
False
In turbulent flow analysis in a pipe, we express the shear stress at the pipe wall through the use of creeping flow theory.
True
False
If in a piping problem, the diameter of the pipe, its roughness, the mass flow rate, and the properties of the fluid are given, a few iterations will generally be needed in order to converge on the proper value of the friction factor and hence the pressure drop.
True
False
There is no accumulation in a non-steady state process.
True
False
Eddies move in a fluid similar to the movement of molecules in ___________.
Liquid
Gas
Solid
The forces at any given point in a non-moving or static fluid must not be the same in all directions.
True
False
It is the random motion of the molecules that causes the net transport of the property
True
False
The _ is attained once the net transport of the thermal energy iz zero
Heat equilibrium
Molecular Equilibrium
Concentration Difference
Thermal Equilibrium
Skin-friction losses in flow through straight pipe are calculated by using the _
Friction losses
Friction factor
Straight pipe friction loss
Net friction loss
The power loss of this flow meter is greater than that of venturi and less than for orifice
Rotameters
Flow nozzle meter
Flow in open channels and weirs
All of the above
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