Test
Fluids
Este test tiene tipos de pregunta que se abren en el reproductor de siempre.
Preguntas del test (13)
1Fluids can resist shear stresses.
- AVerdadero
- BFalso
2An example of an extensive property is
- ATempreature
- BMass
- CPressure
- DDensity
3The density of all fluids varies greatly with temperature and pressure.
- AVerdadero
- BFalso
4Viscosity is:
- Aa measure of a fluids resistance to flow under shear forces.
- Ba measure of how a fluid resists compression
- Cweight of a fluid per unit volume
- Dmass of fluid per unit volume
5No slip condition is?
- Azero velocity of the fluid at a fixed surface
- Bthe inside of a pipe being smooth
- Cdeveloped in frictionless flow
6[blank_start]Newtonian Fluid[blank_end]- maintains a constant viscosity for any shear stress and strain rate.
[blank_start]Non-Newtonian Fluid[blank_end]- a fluid with a non-linear relation between shear stress and shear strain.
[blank_start]Apparent Viscosity[blank_end]- the viscosity of a fluid at any given point in time.
[blank_start]Dilatant Fluid[blank_end]- a Non-Newtonian fluid whose viscosity increases as the shear stress strain rate increases.
[blank_start]Pseudoplastic Fluid[blank_end]- a Non-Newtonian fluid whose viscosity decreases as the shear stress strain rate increases.- ANewtonian Fluid
- BNon-Newtonian Fluid
- CApparent Viscosity
- DDilatant Fluid
- EPseudoplastic Fluid
7Viscosity:
- AIncreases greatly with pressure
- BDecreases greatly with pressure
- CIncreases slightly with pressure
- DDecreases slightly with pressure
- EDecreases with an increase in temperature for liquids
- FIncreases with an increase in temperature for liquids
- GDecreases with an increase in temperature for gasses
- HIncreases with an increase in temperature for gasses
8[blank_start]Cohesion[blank_end]- the attraction between fluid molecules
[blank_start]Adhesion[blank_end]- the attraction between the fluid molecules and the container.
[blank_start]Surface Tension[blank_end]- the force per unit length required to separate molecules on the surface of the fluid.
If adhesion is greater than cohesion a [blank_start]concave up[blank_end] meniscus is formed.
If cohesion is greater than adhesion a [blank_start]convex up[blank_end] meniscus is formed.
[blank_start]Wetting liquids[blank_end] form a concave up meniscus.
[blank_start]Non-wetting liquids[blank_end] form a concave down meniscus.- ACohesion
- BAdhesion
- CSurface Tension
- Dconcave up
- Econvex up
- FWetting liquids
- GNon-wetting liquids
9What is the velocity of a scenario under hydrostatic conditions.
- Astationary
- Bany velocity
- Cany velocity with no acceleration
- Dinfinite velocity
10In hydrostatic conditions their is constant pressure in the horizontal plane.
- AVerdadero
- BFalso
11The Lagrangian model tracks
- AAll the particles in a fluid flow
- BThe particles flowing through a control volume
12What is the no slip condition.
- A0 velocity relative to the surface
- Bmovement at the surface
- CThe fluid slides across the surface
13Select all that are true
- AThe velocity of fluid particles on a streamline is tangential to the line.
- BStreamlines can cross
- CStreamlines cant cross
- DStreamtubes are encased by a series of streamlines
- EA streamtube can be be formed with as few as 2 streamlines
- FA pathline is the path that the particle travels
- GA pathline can be used to determine the average velocity of a fluid
- HStreaklines are a collection of pathlines
- IStreaklines can have many different origins
Información
- Descripción
- Test sobre Fluids, creado por Mark Zachkewich el 17/12/2020.
- Autor
- Mark Zachkewich
- Idioma
- English
- Visitas
- 0
- Valoración
- Aún sin valoraciones Valora este test