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10 Cards in this Set
- Front
- Back
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To calculate the heat gain from fluorescent lighting, add the wattage ratings and multiply by: 1) 0.9 2) 0.8 3) 1.1 4) 1.2 5) 2.1 |
1.2 |
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Thermal transmission may be defined as the: 1) Thermal transmission through a unit area of a particular body with defined surfaces (W/m²ºC) 2) Reciprocal of thermal conductance (mºC/W) 3) Thermal transmission through a unit area of homogeneous material (W/mºC) 4) Quantity of heat flow in unit time (Q or W) 5) Thermal transmission through a unit area of a particular body where the difference between temperatures on either side of the body is unity (W/m²ºC) |
Quantity of heat flow in unit time (Q or W) |
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Thermal transmittance (U) may be defined as the: 1) Reciprocal of thermal conductance (mºC/W) 2) Thermal transmission through a unit area of homogeneous material (W/mºC) 3) Thermal transmission through a unit area of a particular body where the difference between temperatures on either side of the body is unity (W/m²ºC) 4) Quantity of heat flow in unit time (Q or W) 5) Thermal transmission through a unit area of a particular body with defined surfaces (W/m²ºC) |
Thermal transmission through a unit area of a particular body where the difference between temperatures on either side of the body is unity (W/m²ºC) |
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If exhaust fans are used over cooking, only _____ of the heat gain is used in calculations. 1) 25% 2) 75% 3) 60% 4) 50% 5) 10% |
50% |
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Thermal resistance (R) may be defined as the: 1) Quantity of heat flow in unit time (Q or W) 2) Thermal transmission through a unit area of a particular body with defined surfaces (W/m²ºC) 3) Reciprocal of thermal conductance (mºC/W) 4) Thermal transmission through a unit area of homogeneous material (W/mºC) 5) Thermal transmission through a unit area of a particular body where the difference between temperatures on either side of the body is unity (W/m²ºC) |
Reciprocal of thermal conductance (mºC/W) |
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Thermal conductivity (l) may be defined as the: 1) Thermal transmission through a unit area of homogeneous material (W/mºC) 2) Thermal transmission through a unit area of a particular body with defined surfaces (W/m²ºC) 3) Thermal transmission through a unit area of a particular body where the difference between temperatures on either side of the body is unity (W/m²ºC) 4) Quantity of heat flow in unit time (Q or W) 5) Reciprocal of thermal conductance (mºC/W) |
Thermal transmission through a unit area of homogeneous material (W/mºC) |
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Air ventilation is based on the larger of these two requirements: 1) Conduction rate per person and solar heat rate 2) None of the above 3) CFM rate and conduction rate per person 4) Infiltration rate and CFM rate per person 5) Solar heat rate and CFM rate per person |
Infiltration rate and CFM rate per person |
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Thermal conductance (C) may be defined as the: 1) Quantity of heat flow in unit time (Q or W) 2) Thermal transmission through a unit area of a particular body with defined surfaces (W/m²ºC) 3) Reciprocal of thermal conductance (mºC/W) 4) Thermal transmission through a unit area of homogeneous material (W/mºC) 5) Thermal transmission through a unit area of a particular body where the difference between temperatures on either side of the body is unity (W/m²ºC) |
Thermal transmission through a unit area of a particular body with defined surfaces (W/m²ºC) |
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Two methods of calculating air infiltration into a building are the: 1) Air change and solar method 2) Conduction and solar method 3) Air change and crack method 4) Crack and solar method 5) Crack and conduction method |
Air change and crack method |
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In calculating air infiltration the quickest method is: 1) The conduction method 2) The solar method 3) None of the above 4) The air change method 5) The crack method |
The air change method |
