BRCC CMGT 2253 Test 1 Questions With
Complete Solutions
Temperature The measure of the average kinetic energy associated with the chaotic,
microscopic motion of atoms and molecules within a substance.
Heat The agitation or motion of atoms and molecules.
Sensible Heat The heat associated with change in temperature of a substance (i.e. as heat
is added, temperature rises).
Latent Heat The release or storage of heat associated with change in phase of a substance,
without a change in the substance's temperature.
Environmental factors that affect occupant comfort 1) Air temperature
2) Relative Humidity
3)Air movement
4) Mean radiant temperature
, BRCC CMGT 2253 Test 1 Questions With
Complete Solutions
Heat Index (Apparent Temperature) A measure of the contribution that high ambient air
temperature and high humidity make in reducing the body's ability to cool itself.
Conduction Movement of heat through a substance or between two substances in contact
with each other, molecule to molecule. *Most efficient*
Convection Heat transfer by the motion of a heated or cooled mass (between a surface and
a moving fluid).
Radiation Movement of energy by electromagnetic waves
UV Radiation radiative energy that is not visible to the human eye (think sunburn)
Thermal Conductivity (k) A HOMOGENOUS material's ability to transfer heat
Thermal Conductance (C) A HETEROGENOUS material's ability to transfer heat
Complete Solutions
Temperature The measure of the average kinetic energy associated with the chaotic,
microscopic motion of atoms and molecules within a substance.
Heat The agitation or motion of atoms and molecules.
Sensible Heat The heat associated with change in temperature of a substance (i.e. as heat
is added, temperature rises).
Latent Heat The release or storage of heat associated with change in phase of a substance,
without a change in the substance's temperature.
Environmental factors that affect occupant comfort 1) Air temperature
2) Relative Humidity
3)Air movement
4) Mean radiant temperature
, BRCC CMGT 2253 Test 1 Questions With
Complete Solutions
Heat Index (Apparent Temperature) A measure of the contribution that high ambient air
temperature and high humidity make in reducing the body's ability to cool itself.
Conduction Movement of heat through a substance or between two substances in contact
with each other, molecule to molecule. *Most efficient*
Convection Heat transfer by the motion of a heated or cooled mass (between a surface and
a moving fluid).
Radiation Movement of energy by electromagnetic waves
UV Radiation radiative energy that is not visible to the human eye (think sunburn)
Thermal Conductivity (k) A HOMOGENOUS material's ability to transfer heat
Thermal Conductance (C) A HETEROGENOUS material's ability to transfer heat
