Quiz on Biochemical Engineering: Rheology and Mixing

What is the science of the flow and deformation of materials called?

• Fluid Mechanics

• Rheology

• Thermodynamics

• Hydrodynamics

Which type of fluid does NOT obey Newton's law of viscosity?

• Ideal fluids

• Incompressible fluids

• Non-Newtonian fluids

• Newtonian fluids

What is the term for the layer of fluid that adheres to a stationary surface?

• Viscous layer

• Flow layer

• Boundary layer

• Shear layer

What is the primary characteristic of laminar flow?

• Chaotic and turbulent

• Smooth and orderly

• High velocity

• Intermixing of layers

Which of the following is an example of a Bingham plastic?

• Toothpaste

• Corn starch water mixture

• Blood

• Water

What does the Reynolds number help to characterize?

• Density of fluids

• Flow patterns

• Temperature changes

• Viscosity of fluids

What happens to the apparent viscosity of pseudo-plastic fluids as shear rate increases?

• It increases

• It becomes zero

• It remains constant

• It decreases

Which type of fluid is characterized by a threshold shear stress?

• Bingham plastics

• Dilatent fluids

• Newtonian fluids

• Ideal fluids

What is the primary cause of pressure drop in fluid flow through pipes?

• Temperature changes

• Friction at the surface

• Gravity

• Chemical reactions

Which of the following is a characteristic of turbulent flow?

• Smooth and orderly

• Chaotic and eddies

• No intermixing

• Low velocity