Quizizz 11

Condensation will

• Heat a surface

• Cool a surface

Consider an air cavity with a heated floor and cooled ceiling. What will the Nusselt number be in relation to heat transfer from the hot floor?

• Nu > 1

• Nu = 1

• Nu < 1

Consider an air cavity with a cooled floor and heated ceiling. What will the Nusselt number be in relation to heat transfer from the hot ceiling?

• Nu > 1

• Nu = 1

• Nu < 1

Radiation must be considered in which boiling regime:

• Free convection

• Nucleate

• Film

In the boiling example shown, what is ΔT_e?

• 155 °C

• 205 °C

• 50 °C

• 100 °C

In the condensation problem shown, what is the relation between h'_fg and h_fg?

• h'_{fg >} h_fg

• h'_{fg <} h_fg

• h'_{fg =} h_fg

• Not enough information