Residential Energy Audit - Chapter 2

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| Attempts: 268 | Questions: 96 | Updated: Apr 20, 2025
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1. A plane defined by insulation and an air barrier is known as an _________ ___________

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About This Quiz
Residential Energy Audit - Chapter 2 - Quiz

Residential Energy: Cost Savings and Comfort for Existing Buildings [Book]by John Krigger, John Krigger & Chris Dorsi - House & Home - Saturn Resource Management, Inc. (2004) - Paperback - 318 pages

2.
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2. Heat loss can be calculated from building shell characteristics and compared with energy consumption from the utility bills.

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3. Aluminum has the same thermal conductivity as steel.

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4. Energy auditors should use both energy-savings potential and practical considerations to decide whether to include the basement or crawl space within the thermal boundary.

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5. A building's thermal resistance determines how much  heat transmits through the shell.

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6. What is the symbol used to compare the thermal conductivity of different material?

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7. An energy auditor should learn what construction materials were used in the building and how the walls floor and roof were put together.

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8. The amount of BTUs that needs to be removed or added to maintain a good level of comfort for the home's occupant is known as the  _____________ load.

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9.
Identify the most likely older framing technique

Explanation

The explanation for the given correct answer is that option A is identified as the most likely older framing technique because it is stated that it is characteristic of older homes. This implies that option A has been commonly used in older homes, indicating its association with older framing techniques. On the other hand, option B does not have any information provided about its association with older homes, making it less likely to be the correct answer.

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10. Building portrusions and indentations lead to an increased number of seams and surface area.

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11. Conditioned space includes the building's heated and cooled areas.

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12. Whther the basement pipes will freeze in cold climates if the insualtion and air sealing measures are installed between the floor and and basement is a legitimate consideration for including the basement with in the thermal boundary.

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13. R-value measures the resistance of walls, floors and ceilings. U-factor is the inverse of R-value. therefor when R-value = 4 then then the U-factor  = ________.

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14. U-factors state how much heat transmits through a 1-square foot area of cross sectio (wall, floor, or ceiling) in one hour, when there is a 1deg F difference in temperature across the two opposite surfaces.

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15. Unintentionally conditioned and unconditioned spaces may include attics and crawl spaces. These areas are also known as ______________ ________.

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16. It is possible that you may find aspects of both platform frame construction and balloon frame construction in the same home.

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17. A Degree-day measures the duration and severity of outdoor temperature compared to a balance point temperature. The balance point is the minimum outdoor temperature at which no heating is required.

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18. Diagnostic tools are available to energy auditors to help diagnose  building shell problems. These are:

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19. When considering R-values: R-10 + R-5 will equal _________________.

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20. When considering U-factors: U-1 + U-2 equals _________.

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21.

Choose the correct statements:

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22.

In which one of the two drawings will the wall cavities most likely be connected to the to the attic and the basement?

Explanation

In drawing A, the wall cavities are most likely connected to the attic and the basement because there is a clear opening or pathway shown in the drawing that connects the cavities to both the attic and the basement. In drawing B, there is no such opening or pathway indicated, suggesting that the wall cavities are not connected to the attic and the basement.

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23. Heating technicians and engineers, modify heating and cooling calculations regularly in various ways to make them more accurate. Without this, the calculations would be consistently off by 10% or 20% .

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24. R-value measures the resistance of walls, floors and ceilings. U-factor is the inverse of R-value. therefor when R-value = 2 then then the U-factor  = ________.

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25. Factors involved in selecting a building's thermal boundary include:

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26.

In which one of the two drawings will you find pre-build roof trusses, platform framing  and 4'x8' - sheets of plywood or OSB sheating material for walls, floors and ceiling?

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27. The k-value is the amount of heat (BTUs) that will flow each hour through a 1 square foot slab of material 1 inch thick, with a _______ deg temperature difference of between the two sides 

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28. A building's energy inspection and diagnosis include:

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29. Airflow  carrying heat across the thermal boundary and around the insulation is a thermal __________________.

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30. Tracer gas testing is more accurate than blower door testing in measuring natural air change rate, but less practical.

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31.
When considering building structural types, which of the following statements are true?

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32. Heat loss refers to the amount of BTUs flowing through the building shell monthly or annually.

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33. Aluminum is the mot conductive common building material.

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34. After an energy auditor's evaluation of an building, the thermal boundary may include:

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35. Balloon framed construction are often found in homes build before _____________.

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36. During a blower door test, the results show that the home has 1 air changes per hour @ 50 pascals or 0.07 ACHn (natural air changes per hours). Which of the following conclusions would be correct.

Explanation

The given answer suggests that the home's shell is extremely tight and exceeds EEBA (Energy and Environmental Building Alliance) standards. This conclusion is based on the fact that the blower door test results show a low air change rate per hour, indicating minimal air leakage in the home. Meeting or exceeding EEBA standards implies that the home has been built with a high level of energy efficiency and a tight building envelope.

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37. Which of the following are known as points of weakness in a building structure?

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38. Colder climates favor insulating the the floor between the crawl space and the house because the ground is colder.. 

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39. In warmer climates, including the thermal boundary is favored because heat loss to the cooler ground  may aid iin cooling the home.

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40. An thorough outdoor inspection will look at things such as:

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41. Choose the correct k value (thermal conductivity) for Aluminum  

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42. The u-factor is similar to the k-value, but the u-factor gives the amount of heat that transmits through a square foot of building cross-section composed of ___________________.

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43. U-factors are used to calculate power and energy needed for heating

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44. ________________________ should provide fresh air to a building at a minimum rate of 15 CFM per person or 0.35 air changes per hour. (Choose one)

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45. Which of the following are common conduits for air leakage that allow indoor air and outdoor air to mix in multi family buildings?

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46. Choose the correct k value (thermal conductivity) for steel

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47. R-value measures the resistance of walls, floors and ceilings. U-factor is the inverse of R-value. therefor when R-value = 1 then then the U-factor  = ________.

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48. Indicate the possible reason(s) for calculating transmission heat loss.

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49. Tracer gas testing measures air leakage at _______________ pressures.

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50. Total heating energy and total cooling energy does not include the inefficiencies of the heating & cooling system.

Explanation

The statement is false because the total heating energy and total cooling energy do include the inefficiencies of the heating and cooling system. These inefficiencies can be due to factors such as heat loss or energy waste during the heating or cooling process. Therefore, the total energy consumption for heating and cooling includes both the actual energy used for heating and cooling and any inefficiencies in the system.

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51. The exterior walls of some homes are made completely from masonry materials: block, stone, brick or concrete. Indicate which of the following is also true about masonry materials.

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52. House A's floor, over an unused basement in a cold climate, is easily accessible for insulation and air sealing. The ducts are fairly airtight, but uninsulated. The floor is a fairly good air barrier, but the foundation is is leaky and difficult to insulate.

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53. During a blower door test, the results show that the home has 12 air changes per hour @ 50 pascals or 0.80 ACHn (natural air changes per hours). Which of the following conclusions would be correct.

Explanation

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54. Cooling load is less predictable than heating load because of these important variables differ widely from home to home:

Explanation

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55. If the average temperature outdoor for a particular day is 30 deg F, what would the accumulated degree days for that day be?

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56. The amount on air leakage depends on:

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57. During a duct blower test, the results show that the home has a duct leakage level of 26%. Which of the following conclusions would be correct.

Explanation

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58. What is  the definition of Design Temperature?

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59. During summer the main heat driving force is _________________.

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60. Shade line factor accounts for ___________________.

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61. In hot climates energy efficient homes:

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62. Heat conduction rate depend on the thickness of the material. If material X is 1/2 inch think and has a k-value of 2k what would the k-value be if this material was 2 inches thick.

Explanation

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63. When determining whether or not to include a crawl space within the thermal boundary, the following should be considered:

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64. Home B, is located in a mild climate, has a pump and pressure tanks in its crawl space. The ground under the house is covered by a moisture barrier and the house has no moisture problems. Ducts are fairly leaky and lack insualtion, and they would be difficult to insulate and air seal.

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65. During a duct blower test, the results show that the home  has a duct leakage level of 2%. Which of the following conclusions would be correct.

Explanation

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66. Ventilation does not have the same energy effect as air leakage.

Explanation

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67. Warmer climates favor insulating the the floor between the crawl space and the house because the ground is colder.

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68. The number of BTUs per hour of heating capacity needed by a building depends on climate, insulation levels, air leakage and heating installation quality.  If a home requires 5 BTUs per hour per square foot of floor space it would be accurate to conclude that:

Explanation

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69. Indicate which list below correctly state the least to most conductive building materials.

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70. Select the correct statement(s):

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71. The quantity of heat transmission through the shell of a building depends on:

Explanation

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72. In the case of an uninsulated wall cavity, __________________ and _________________ dominate  heat transmission.

Explanation

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73. Indicate which of the following portrutions , indentations, and penetratios are weakenesses found in multi family buildings?

Explanation

The weaknesses found in multi-family buildings include thermal bridging from steel and aluminum components, protruding or recessed balconies, eaves, canopies, and windows, as well as rooftop protrusions and penetrations like rooftop elevator shafts and air handlers. These weaknesses can lead to energy loss, structural vulnerabilities, and potential water infiltration, compromising the overall integrity and efficiency of the building.

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74. R-values are used to calculate power and energy needed for heating.

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75. Indicate the widely accepted  types of heat gain.

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76. When we say that insulation resists heat transmission , we mean it resists:

Explanation

Insulation resists heat transmission by resisting convection, radiation, and conduction. Convection is the transfer of heat through the movement of fluids or gases, radiation is the transfer of heat through electromagnetic waves, and conduction is the transfer of heat through direct contact. Insulation materials are designed to minimize these modes of heat transfer, thereby reducing the amount of heat that can pass through them.

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77. Which are true statements regarding windows?

Explanation

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78. Indicate the true statement(s):

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79. Windows are a bigger concern than doors because:

Explanation

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80. One square foot of steel conducts the same amount of heat as: (assume the thickness of material is the same)

Explanation

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81. Air leakage in cubic feet of air per minute (CFM) depends on the _______________ and the _____________________.

Explanation

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82. During a duct blower test, the results show that the home  has a duct leakage level of 10%. Which of the following conclusions would be correct.

Explanation

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83. Mobile home point of weakness are:

Explanation

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84. What is stack effect?

Explanation

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85. The number of BTUs per hour of heating capacity needed by a building depends on climate, insulation levels, air leakage and heating installation quality.  If a home requires 13 BTUs per hour per square foot of floor space it would be accurate to conclude that:

Explanation

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86. During a duct blower test, the results show that the home has a duct leakage level of 17%. Which of the following conclusions would be correct.

Explanation

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87. During a duct blower test, the results show that the home  has a duct leakage level of 8%. Which of the following conclusions would be correct.

Explanation

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88. Factors that favor excluding a crawl space from the thermal boundary include:

Explanation

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89. During a blower door test, the results show that the home has 8 air changes per hour @ 50 pascals or 0.53 ACHn (natural air changes per hours). Which of the following conclusions would be correct.

Explanation

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90. During a blower door test, the results show that the home has 3 air changes per hour @ 50 pascals or 0.20 ACHn (natural air changes per hours). Which of the following conclusions would be correct.

Explanation

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91. The number of BTUs per hour of heating capacity needed by a building depends on climate, insulation levels, air leakage and heating installation quality. If a home requires 50 BTUs per hour per square foot of floor space it would be accurate to conclude that:

Explanation

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92. Glass load factors consider which of the following:

Explanation

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93. Outdoor air and indoor air can mingle

Explanation

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94. The rate of heat transmission depends on ___________ and ______________.

Explanation

The rate of heat transmission depends on two factors: thermal resistance and surface area. Thermal resistance refers to the material's ability to resist the flow of heat, with higher resistance resulting in slower heat transmission. Surface area plays a role as well, as a larger surface area allows for more heat to be transferred. Therefore, both thermal resistance and surface area are important considerations when determining the rate of heat transmission.

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95. Factors that will determine the inclusion of of unused basements and crawl spaces with the thermal boundary consists off:

Explanation

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96. The amount of heating energy needed by the home during the heating season is the sum of:

Explanation

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A plane defined by insulation and an air barrier is known as an...
Heat loss can be calculated from building shell characteristics and...
Aluminum has the same thermal conductivity as steel.
Energy auditors should use both energy-savings potential and practical...
A building's thermal resistance determines how much  heat...
What is the symbol used to compare the thermal conductivity of...
An energy auditor should learn what construction materials were used...
The amount of BTUs that needs to be removed or added to maintain a...
Identify the most likely older framing technique
Building portrusions and indentations lead to an increased number of...
Conditioned space includes the building's heated and cooled areas.
Whther the basement pipes will freeze in cold climates if the...
R-value measures the resistance of walls, floors and ceilings....
U-factors state how much heat transmits through a 1-square foot area...
Unintentionally conditioned and unconditioned spaces may include...
It is possible that you may find aspects of both platform frame...
A Degree-day measures the duration and severity of outdoor temperature...
Diagnostic tools are available to energy auditors to help...
When considering R-values: R-10 + R-5 will equal _________________.
When considering U-factors: U-1 + U-2 equals _________.
Choose the correct statements:
In which one of the two drawings will the wall cavities most likely be...
Heating technicians and engineers, modify heating and cooling...
R-value measures the resistance of walls, floors and ceilings....
Factors involved in selecting a building's thermal boundary include:
In which one of the two drawings will you find pre-build roof trusses,...
The k-value is the amount of heat (BTUs) that will flow each hour...
A building's energy inspection and diagnosis include:
Airflow  carrying heat across the thermal boundary and around the...
Tracer gas testing is more accurate than blower door testing in...
When considering building structural types, which of the following...
Heat loss refers to the amount of BTUs flowing through the building...
Aluminum is the mot conductive common building material.
After an energy auditor's evaluation of an building, the thermal...
Balloon framed construction are often found in homes build before...
During a blower door test, the results show that the home has 1 air ...
Which of the following are known as points of weakness in a building...
Colder climates favor insulating the the floor between the crawl space...
In warmer climates, including the thermal boundary is favored because...
An thorough outdoor inspection will look at things such as:
Choose the correct k value (thermal conductivity) for Aluminum  
The u-factor is similar to the k-value, but the u-factor gives the...
U-factors are used to calculate power and energy needed for heating
________________________ should provide fresh air to a building at a...
Which of the following are common conduits for air leakage that allow...
Choose the correct k value (thermal conductivity) for steel
R-value measures the resistance of walls, floors and ceilings....
Indicate the possible reason(s) for calculating transmission heat...
Tracer gas testing measures air leakage at _______________ pressures.
Total heating energy and total cooling energy does not include the...
The exterior walls of some homes are made completely from masonry...
House A's floor, over an unused basement in a cold climate, is easily...
During a blower door test, the results show that the home has 12 air...
Cooling load is less predictable than heating load because of these...
If the average temperature outdoor for a particular day is 30 deg F,...
The amount on air leakage depends on:
During a duct blower test, the results show that the home has a duct...
What is  the definition of Design Temperature?
During summer the main heat driving force is _________________.
Shade line factor accounts for ___________________.
In hot climates energy efficient homes:
Heat conduction rate depend on the thickness of the material. If...
When determining whether or not to include a crawl space within the...
Home B, is located in a mild climate, has a pump and pressure tanks in...
During a duct blower test, the results show that the home  has a...
Ventilation does not have the same energy effect as air leakage.
Warmer climates favor insulating the the floor between the crawl space...
The number of BTUs per hour of heating capacity needed by a building ...
Indicate which list below correctly state the least to most conductive...
Select the correct statement(s):
The quantity of heat transmission through the shell of a building...
In the case of an uninsulated wall cavity, __________________ and...
Indicate which of the following portrutions , indentations, and...
R-values are used to calculate power and energy needed for heating.
Indicate the widely accepted  types of heat gain.
When we say that insulation resists heat transmission , we mean it...
Which are true statements regarding windows?
Indicate the true statement(s):
Windows are a bigger concern than doors because:
One square foot of steel conducts the same amount of heat as: (assume...
Air leakage in cubic feet of air per minute (CFM) depends on the...
During a duct blower test, the results show that the home  has a...
Mobile home point of weakness are:
What is stack effect?
The number of BTUs per hour of heating capacity needed by a building ...
During a duct blower test, the results show that the home has a duct ...
During a duct blower test, the results show that the home  has a...
Factors that favor excluding a crawl space from the thermal boundary...
During a blower door test, the results show that the home has 8 air ...
During a blower door test, the results show that the home has 3 air ...
The number of BTUs per hour of heating capacity needed by a building...
Glass load factors consider which of the following:
Outdoor air and indoor air can mingle
The rate of heat transmission depends on ___________ and...
Factors that will determine the inclusion of of unused basements and...
The amount of heating energy needed by the home during the heating...
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