Heat through the building envelope

The ___ is defined as the amount of heat necessary to raise the temperature of 1 pound of water by 1 °F

• kilocalorie

• British Thermal Unit

• heat

• temperature

A material with high heat capacity and low conductivity will have a ___

• low thermal lag

• high thermal lag

• low thermal capacity

• high thermal capacity

___ can reduce the heat loss by up to 40%

• Insulation

• Cavity wall

• sun shade

• vertical fins

The ___ the solar gain factor the lesser the heat transfer through windows or openings

• equal

• more

• lesser

• none

___ is the heat flow rate through a unit area of the body when the temperature difference between the two surfaces is 1ºC

• resistivity

• resistance

• conductivity

• Conductance

___ of a substance is the amount of heat energy necessary to cause unit temperature increase of a unit mass of the substance

• sol air

• latent heat

• Specific heat

• all the above

___ is the measure of hotness or coldness

• Temperature

• heat

• both

• none

___ is defined as  the rate of heat flow through unit thickness of the material per unit area, when there is a unit temperature difference between the two sides

• resistance

• conductance

• Thermal resistivity

• Thermal conductivity

The ___ the resistivity, the better the insulating property of a material.

• higher

• lower

• none

The ___ is defined as the outside air temperature which, in the absence of solar radiation, would give the same temperature distribution and rate of heat transfer through a wall

• conductivity

• heat gain factor

• sol-air temperature

• specific heat