Fluid Mechanics Quiz

How does a fluid respond to an applied shear stress?

• By resisting

• By deforming continuously

• By solidifying

• By evaporating

What is the main reason gas molecules are widely spaced?

• High cohesive forces.

• Low cohesive forces.

• High density.

• Low temperature.

What is a key difference between liquids and gases?

• Both are incompressible

• Liquids have no fixed volume

• Gases occupy a fixed volume

• Liquids are difficult to compress

Which of the following is NOT mentioned as an application area of fluid mechanics?

• Breathing

• Blood flow

• Cooking

• Swimming

The study of properties of fluids in motion is called

• Fluids Study

• Fluids statics

• Fluids dynamics

• None

The kinematic viscosity is the

• ratio of absolute viscosity to the density of the liquid

• ratio of density of the liquid to the absolute viscosity

• product of absolute viscosity and density of the liquid

• product of absolute viscosity and mass of the liquid

The fluid will rise in a capillary tube when the tube is inserted into the fluid, if...

• the adhesion force between molecules of fluid and tube is less than the cohesion between liquid molecules

• the adhesion force between molecules of fluid and tube is more than the cohesion between liquid molecules

• the adhesion force between molecules of fluid and tube is equal to the cohesion between liquid molecules

• None of the above

The formula for density is...

• mass/ acceleration
• volume/ mass
• mass/ volume
• none

Fluids for which the shearing stress is not linearly realted to the rate of the shearing strain are designated as what?

• Viscous fluids

• Newtonian fluid

• Non-Newtonian fluid

• Ideal fluid

Which of the following is a good example of a non-wetting liquid when it is in contact with a glass tube?

• Water

• Saltwater

• Mercury