Rheology Basics Quiz

What is rheology?

• The study of electrical conductivity

• The study of chemical reactions

• The study of plant biology

• The study of the flow and deformation properties of matter

Why is fluid rheology important in the cosmetic industry?

• To analyze the flow and deformation of matter in cosmetic processes

• To study the behavior of gases

• To investigate the behavior of rocks

• To understand the properties of metals

What is the term used for the applied stress on the surface of a fluid?

• Force

• Volume

• Pressure

• Temperature

What is the intrinsic property of a fluid called when plotting shear stress versus rate of shear?

• Dynamic viscosity

• Density

• Surface tension

• Elasticity

Which type of fluid exhibits a time-dependent decrease in viscosity under continuous shear stress?

• Bingham Plastic

• Thixotropic

• Pseudo-Plastic

• Dilatant

What happens to the viscosity of water as the temperature increases?

• Remains constant

• Becomes solid

• Decreases

• Increases

What property refers to the ability of a material to deform under stress and return to its original shape?

• Viscoelasticity

• Elasticity

• Viscosity

• Plasticity

What is the broader scientific discipline that encompasses viscosity and studies the flow and deformation of materials?

• Physics

• Chemistry

• Biology

• Rheology

Which type of viscometer involves rotating a spindle in the fluid to measure viscosity?

• Rotational viscometer

• Capillary viscometer

• Oscillatory viscometer

• Vibrational viscometer

What should be considered when deciding the type of viscometer to use?

• Type of metal, electrical conductivity, magnetic properties, weight

• Type of gas, color of the fluid, viscosity, density

• Type of fluid, temperature and pressure conditions, required precision, budget

• Type of solid, chemical composition, size of the container, brand