Question

Quiz #2 Indicate whether the statements are true or false ( each 1 point) 1-K inematic viscosity and dynamic viscosity have different units 2-Dynamic viscosity are the physical properties of a fluid 3-I n all fluids the shear stress is linearly proportional to the velocity gradient 5-Chocolate is a Newtonian fluicd 6-Saybolt Universal Viscometer measures the dynamic viscosity T/F T/F T/F T/F T/F Question 1 A capillary tube viscometer (shown in the figure) is being used to measure the viscosity of an ol having the specific gravity of O.9. The following data apply (5 pints): Tube inside diameter-2.5 mm Length between manometer taps-330mm Mercury density is. 13.5 g/cmA3 Manometer deflection 150 mm The velocity of fluid 2 ft/s Calculate both dynamic and kinematic viscosities of the oil (SI units) Density of water 1 gr/ cm3 1 (ft) -0.3 (m) (Pi 32UL Fluid

answer in details would be helpfu l

Answer 1

I answered the question according to Chegg answering guidelines, If you want an answer of all please put it as a separate question, or mention a specified number of the question you want a solution.

Answers of True False................

1.) True

Dynamic viscosity is measure of fluid’s resistance to shear flow when some external force is applied. It is useful for describing the behavior of fluids under stress. Mainly, it is useful in describing non-Newtonian fluids by observing how viscosity changes as the shear velocity changes.

Kinematic viscosity is ratio of dynamic viscosity to density of that fluid. It is measure of fluid’s resistance to shear flow under the weight of gravity. Force is applied weight here. It’s measure of fluid’s resistance to flow, when no external forces except gravity is acting. It is more useful in describing Newtonian fluids.

What are Newtonian and Non-Newtonian fluids?

Newtonian fluid is fluid in which shear stress is directly proportional to shear strain (which is velocity gradient dV/dy) where for Non-Newtonian fluid, it is not. For Non-Newtonian fluid change in shear stress can create increase in shear strain or decrease, there is no linear relationship.

2.) True

There are three physical properties of fluids that are particularly important: density, viscosity, and surface tension.

3.) False

Newtonian fluid is fluid in which shear stress is directly proportional to shear strain (which is velocity gradient dV/dy) where for Non-Newtonian fluid, it is not. For Non-Newtonian fluid change in shear stress can create increase in shear strain or decrease, there is no linear relationship.

4.) False

Chocolate is Non-Newtonian fluid.

5.) False

No, it measures kinematic viscosity of a fluid.