Energy Transport in Transport Phenomena Quiz

What is the process of energy transfer through a material due to a temperature gradient?

• evaporation

• conduction

• radiation

• convection

What is the equation for heat conduction in one dimension?

• q = k(dT/dz)

• q = -k(dT/dx)

• q = k(dT/dx)

• q = k(dT/dy)

What is the principle that describes the heat transfer due to the bulk movement of fluids?

• convection

• absorption

• radiation

• reflection

Who is the scientist credited with the discovery of Fourier's law of heat conduction?

• Isaac Newton

• Marie Curie

• Joseph Fourier

• Albert Einstein

What is the relationship between the temperature gradient and the heat flux in Fourier's law?

• Directly proportional

• Inverse proportional

• No relationship

• Exponential relationship

Identify the wrong statement

a)

b)

c)

d)

• The process of heat transfer is an irreversible process

• For heat exchange, a temperature gradient must exist

• A material medium is not necessary for heat transmission

• Heat flow doesn’t depend on temperature

Negative sign in Fourier heat conduction equation indicates

• Heat always flow is in the direction of positive temperature gradient

• Heat always flow in the direction of negative temperature gradient

• No heat flow is there

• Data is insufficient

Which one is not the unit of thermal conductivity ?

• kcal/m hr K

• KJ/m hr K

• W/m s K

• Cal/cm s K

At high pressure, gas viscosity _________________ with the increase in pressure especially near the critical point.

• Does not change

• Increases

• Decreases

• None of these

Which is the text book for Transport Phenomena subject ?

• Stewart, Bird & Light foot

• Bennett & Mayers

• Foust & Wenzel

• Anderson