CON 1100V U04 COMPLETE EXAM REVIEW
WITH FULL SOLUTIONS
●● British Thermal Unit (BTU)
Answer: the amount of heat required to raise the temperature of 1 bm of
water by 1°F
●● Coefficient of Heat Transmission
Answer: the overall rate of heat flow through any combination of
materials, including air spaces and air layers on the interior and exterior
of a building assembly
●● Conductance
Answer: the number of British thermal units per house that pass through
1 ft² of homogeneous material 1 in thick when the temperature
differential is 1°F
●● Dew point
Answer: the temperature at which water vapor in the air becomes
saturated and begins to condense to drops of water
●● Dry bulb temperature
,Answer: the temperature of the air water mixture as measured with a
standard dry bulb thermometer
●● Enthalpy
Answer: the total heat in a substance, including latent heat and sensible
heat
●● Latent heat
Answer: heat that causes a change of state of a substance, such as the
heat required to change water into steam
●● Resistance
Answer: the number of hours needed for 1 Btu to pass through 1 ft² of
material or assembly of a given thickness when the temperature
differential is 1 °F. It is the reciprocal of conductance
●● Sensible heat
Answer: heat that causes a change in temperature of a substance but not
a change of state
●● Specific heat
Answer: the number of Btus (joules) required to raise the temperature of
a specific material by 1 °F (1K)
,●● Wet bulb temperature
Answer: the temperature of the air as measured with a sling
psychrometer
●● Radiation
Answer: the transfer of heat energy through electromagnetic waves from
one surface to a cooler surface
●● Conduction
Answer: the transfer of heat through direct contact between two objects
of different temperatures
●● Viewed angle
Answer: the solid angle formed between the measuring position and the
outer edges of the object
●● Emissivity
Answer: the measure of an objects ability to absorb and then radiate heat
●● Mean radiant temperature (MRT)
Answer: the weighted average of the various surface temperatures in a
room and the angle of exposure of the occupant to these surfaces as well
as of any sunlight present
, ●● Operative temperature
Answer: an average of the air temperature of a space and the mean
radiant temperature (MRT) of the space, measured with a globe
thermometer
●● clo
Answer: unit for measuring human comfort of clothing, equal to an
American man's business suit or 0.15 clo/lbm
●● psychrometry
Answer: the study of the content of air
●● enthalpy
Answer: the total amount of both sensible and latent heat in the air
moisture mixture
●● conduction
Answer: the transfer of heat through direct contact between molecules
●● convection
Answer: the transfer of heat through the movement of air
●● radiation
WITH FULL SOLUTIONS
●● British Thermal Unit (BTU)
Answer: the amount of heat required to raise the temperature of 1 bm of
water by 1°F
●● Coefficient of Heat Transmission
Answer: the overall rate of heat flow through any combination of
materials, including air spaces and air layers on the interior and exterior
of a building assembly
●● Conductance
Answer: the number of British thermal units per house that pass through
1 ft² of homogeneous material 1 in thick when the temperature
differential is 1°F
●● Dew point
Answer: the temperature at which water vapor in the air becomes
saturated and begins to condense to drops of water
●● Dry bulb temperature
,Answer: the temperature of the air water mixture as measured with a
standard dry bulb thermometer
●● Enthalpy
Answer: the total heat in a substance, including latent heat and sensible
heat
●● Latent heat
Answer: heat that causes a change of state of a substance, such as the
heat required to change water into steam
●● Resistance
Answer: the number of hours needed for 1 Btu to pass through 1 ft² of
material or assembly of a given thickness when the temperature
differential is 1 °F. It is the reciprocal of conductance
●● Sensible heat
Answer: heat that causes a change in temperature of a substance but not
a change of state
●● Specific heat
Answer: the number of Btus (joules) required to raise the temperature of
a specific material by 1 °F (1K)
,●● Wet bulb temperature
Answer: the temperature of the air as measured with a sling
psychrometer
●● Radiation
Answer: the transfer of heat energy through electromagnetic waves from
one surface to a cooler surface
●● Conduction
Answer: the transfer of heat through direct contact between two objects
of different temperatures
●● Viewed angle
Answer: the solid angle formed between the measuring position and the
outer edges of the object
●● Emissivity
Answer: the measure of an objects ability to absorb and then radiate heat
●● Mean radiant temperature (MRT)
Answer: the weighted average of the various surface temperatures in a
room and the angle of exposure of the occupant to these surfaces as well
as of any sunlight present
, ●● Operative temperature
Answer: an average of the air temperature of a space and the mean
radiant temperature (MRT) of the space, measured with a globe
thermometer
●● clo
Answer: unit for measuring human comfort of clothing, equal to an
American man's business suit or 0.15 clo/lbm
●● psychrometry
Answer: the study of the content of air
●● enthalpy
Answer: the total amount of both sensible and latent heat in the air
moisture mixture
●● conduction
Answer: the transfer of heat through direct contact between molecules
●● convection
Answer: the transfer of heat through the movement of air
●● radiation
