Properties of Fluids Lecture 2 Quiz

Viscosity is the resistance that a fluid offers to flow when subject to a shear stress.

Isaac Newton

In liquids, viscosity decreases with increasing temperature.

<p>In gases, viscosity increases with increasing temperature.</p> Signup and view all the answers

<p>It is a measure of a substance's resistance to compression under pressure.</p> Signup and view all the answers

<p>It is the tendency of the surface of a liquid to resist an external force.</p> Signup and view all the answers

<p>Viscosity is the resistance of a fluid to flow.</p> Signup and view all the answers

<p>Fluids with high viscosity deform more slowly than fluids with low viscosity.</p> Signup and view all the answers

<p>The unit of viscosity is N.s/m2 or kg/m/s.</p> Signup and view all the answers

<p>Viscosity is important in determining the amount of fluids that can be transported in a pipeline during a specific period of time.</p> Signup and view all the answers

<p>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.</p> Signup and view all the answers

<p>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.</p> Signup and view all the answers

<p>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.</p> Signup and view all the answers

<p>Kinematic viscosity is the ratio of the viscosity to the density of a fluid.</p> Signup and view all the answers

<p>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.</p> Signup and view all the answers

<p>In general, the viscosity of liquids increases with temperature.</p> Signup and view all the answers