16 Questions
What is viscosity?
Viscosity is the resistance that a fluid offers to flow when subject to a shear stress.
Who described viscosity as the resistance which arises from the lack of slipperiness of the parts of a fluid?
Isaac Newton
How does viscosity of a fluid change with temperature in liquids?
In liquids, viscosity decreases with increasing temperature.
How does viscosity of a fluid change with temperature in gases?
In gases, viscosity increases with increasing temperature.
What is the bulk modulus of elasticity?
It is a measure of a substance's resistance to compression under pressure.
What is surface tension?
It is the tendency of the surface of a liquid to resist an external force.
What is viscosity?
Viscosity is the resistance of a fluid to flow.
How is viscosity related to the deformation of fluids?
Fluids with high viscosity deform more slowly than fluids with low viscosity.
What is the unit of viscosity?
The unit of viscosity is N.s/m2 or kg/m/s.
What is the significance of viscosity in pipeline transportation?
Viscosity is important in determining the amount of fluids that can be transported in a pipeline during a specific period of time.
What is the 'no slip condition' in relation to viscosity?
The 'no slip condition' refers to the fact that, due to viscosity, particles of fluid adhere to the walls at boundaries, resulting in zero fluid velocity relative to the wall.
What is the Newtonian law of viscosity?
The Newtonian law of viscosity states that there is a linear relationship between shear stress and the velocity gradient (rate of shear) in Newtonian fluids.
How is non-Newtonian fluid viscosity different from Newtonian fluid viscosity?
The viscosity of non-Newtonian fluids depends on the velocity gradient as well as the condition of the fluid, while the viscosity of Newtonian fluids is not dependent on the velocity gradient.
What is kinematic viscosity?
Kinematic viscosity is the ratio of the viscosity to the density of a fluid.
What is the bulk modulus of elasticity?
The bulk modulus of elasticity measures a substance's resistance to uniform compression and is defined as the ratio of the infinitesimal pressure increase to the resulting relative decrease of the volume.
How does the viscosity of liquids change with temperature?
In general, the viscosity of liquids increases with temperature.
Test your knowledge on the properties of fluids with this quiz. Topics include viscosity, bulk modulus of elasticity, surface tension, vapor pressure, and solving problems related to these properties.
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