Building Science Course Exam

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1. The three modes of heat transfer include:
- Diffusion, conduction and radiation
- Natural convection, forced convection and conduction
- Absorptance, reflectance and emittance
- Convection, conduction and radiation
2. Use the conductive heat flow equation to determine Q across a 500 ft2 wall with combined insulation level of R-19 where inside temperature is 70ºF and outside is 40ºF.Q = U x A x ∆T
- 9,500 Btu/hr
- 789 Btu/hr
- 285,000 Btu/hr
- 1,842 Btu/hr
3. A structural insulated panel (SIP) wall is composed of the following materials. What is the composite R-Value for the assembly:
Material chart
- 15.45
- 24.29
- 12.9
- 8.84
4. According to the lesson, uncontrolled airflow:
- Occurs where the pathways of flow, the direction of flow, and the origin of the air are unknown, unspecified, or unintended
- Occurs through duct leaks
- Can result from interior door closure
- All of the above
5. Radiation:
- Occurs when there is a difference in temperature within a material or between adjacent materials
- Is heat transfer by emission and absorption
- Is heat transfer in a gas or liquid by the circulation of currents from one area or region to another
- None of the above
6. U-Factor is an important specification that is costly to improve in window products. When balancing window cost and U-Factor performance:
- Better U-Factors are more cost-effective in the coldest climates
- Better U-Factors are more cost-effective in the hottest climates
- The best U-Factor should always be chosen regardless of cost
7. According to the lesson, air transport moisture movement:
- Is water movement into porous materials
- Is a function of material permeability and vapor pressure differential
- Moves from low pressure to high pressure
- Depends on the amount of moisture in the air and air pressure differences
8. Which takes more heat energy?
- Melting a pound of 32°F ice to liquid water
- Burning 10 blue-tip kitchen matches
- Raising the temperature of a pound of liquid water from 32°F to 212°F
- Heating a pound of 212°F liquid water to water vapor
9. Choose the best statement about temperature, heat and heat capacity:
- Temperature informs us how much heat or energy a substance contains.
- Typically if you put two substances together that are at the same temperature their overall energy content will increase but the temperature will stay the same.
- Heat capacity is a property of a substance and is expressed in Btus/lb-°F whereas specific heat is the amount of heat a given brick or other material contains.
- Heat moves from a cold material to a hot material.

Building Science Course Exam Quiz

1. The three modes of heat transfer include:

2. Use the conductive heat flow equation to determine Q across a 500 ft2 wall with combined insulation level of R-19 where inside temperature is 70ºF and outside is 40ºF.Q = U x A x ∆T

3. A structural insulated panel (SIP) wall is composed of the following materials. What is the composite R-Value for the assembly:

4. According to the lesson, uncontrolled airflow:

5. Radiation:

6. U-Factor is an important specification that is costly to improve in window products. When balancing window cost and U-Factor performance:

7. According to the lesson, air transport moisture movement:

8. Which takes more heat energy?

9. Choose the best statement about temperature, heat and heat capacity:

Building Science for Energy Modeling and Field Inspection

Building Science Introduction

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Building Science Exam