CEA-Activity 2.2.3 Quiz

Heat transfer is the exchange of:

• Mass between systems.

• Thermal energy between systems.

• Kinetic energy within a single system.

• Potential energy between systems.

Heat always flows from:

• Cold to hot regions.

• High pressure to low pressure.

• High temperature to low temperature.

• Low density to high density.

Which is NOT a fundamental mode of heat transfer?

• Conduction

• Convection

• Radiation

• Diffusion

Thermal equilibrium is reached when:

• All bodies are at absolute zero.

• All bodies are at different temperatures.

• All bodies are at the same temperature.

• Heat transfer has stopped completely.

An example of desirable heat transfer in building design is:

• Passive solar heating using thermal mass.

• Heat gain from poorly sealed windows.

• Air conditioning malfunction.

• Heat loss through poorly insulated walls.

Heat loss typically occurs:

• During the summer months.

• When outside temperature is higher than inside temperature.

• When outside temperature is lower than inside temperature.

• When there is no wind.

The primary goal of heating system design is to:

• Maximize heat loss.

• Provide at least as much thermal energy as is lost.

• Minimize the use of insulation.

• Ignore heat transfer considerations.

Minimizing heat loss typically involves:

• Increasing air leaks.

• Using materials with lower R-values.

• Using materials with higher R-values.

• Ignoring insulation.

The goal of cooling system design is to:

• Maximize heat gain.

• Remove at least as much thermal energy as is added.

• Minimize the use of insulation.

• Ignore heat transfer considerations.

A significant source of heat gain in a building is:

• Only occupant heat.

• Only solar radiation.

• Solar radiation and occupant heat.

• Solar radiation, occupant heat, and equipment heat.