Integrated Building Systems 1
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Questions and Answers

Which tool is considered the most handy for designers when reading a Psychrometric Chart?

  • RH Line
  • Psychrometric Chart (correct)
  • Interactive Chart
  • Dew Point

What is the Dew Point for the given conditions of Outside (92 F) RH: 60%?

  • 60%
  • 92 F
  • 77 F (correct)
  • 68 F

What is the moisture buffer capacity of a material called?

  • Drying
  • Adsorption (correct)
  • Absorption
  • Permeance

What unit of measurement is used to characterize the water vapor permeance of materials?

<p>Perm (C)</p> Signup and view all the answers

What does a good Vapor Barrier do?

<p>Keep the Water Out (B)</p> Signup and view all the answers

What drives diffusive moisture transport?

<p>Difference in Absolute Humidity (C)</p> Signup and view all the answers

What happens when moisture doesn't dry out?

<p>Accumulates on surfaces (C)</p> Signup and view all the answers

What is the ratio that drives evaporation?

<p>Relative Humidity (B)</p> Signup and view all the answers

What is the formula for calculating the amount of water vapor a material allows through over a period of time?

<p>1 Perm = 1 grain of water vapor per hour per square foot per inch of mercury (A)</p> Signup and view all the answers

Where should the vapor barrier be set to avoid condensation?

<p>Towards the warmer side (B)</p> Signup and view all the answers

Which of the following is NOT a property of windows mentioned in the text?

<p>SEF (B)</p> Signup and view all the answers

What is the formula for calculating the Projection Factor (PF) for vertical fins and overhangs?

<p>PF = (Total Heat Gain) / (Glass Area) (C)</p> Signup and view all the answers

What is the contribution of Solar Heat Gain Coefficient (SHGC) to the Total Heat Gain?

<p>80% (B)</p> Signup and view all the answers

What is the formula for calculating the Total Heat Gain?

<p>Total Heat Gain = (SHGC contribution) + (U_value contribution) (C)</p> Signup and view all the answers

What is the formula for calculating the U-value contribution to the Total Heat Gain?

<p>U_value contribution = 20% (C)</p> Signup and view all the answers

What are the three states (phases) in which water exists around us?

<p>Solid, Liquid, Gas (C)</p> Signup and view all the answers

What is the process called when the water phase changes from solid to liquid?

<p>Melting (B)</p> Signup and view all the answers

What is the process called when the water phase changes from liquid to gas?

<p>Evaporation (A)</p> Signup and view all the answers

Is water considered a form of mass transfer or energy transfer?

<p>Mass transfer (D)</p> Signup and view all the answers

Which of the following is NOT a property of water mentioned in the text?

<p>Heat (D)</p> Signup and view all the answers

Which of the following is NOT a process that can cause phase change in water?

<p>Enthalpy (C)</p> Signup and view all the answers

At what temperature does water boil at 1 atm pressure?

<p>100°C (B)</p> Signup and view all the answers

What is the phase of water at 0°C (32°F) and 1 atm pressure?

<p>Solid (A)</p> Signup and view all the answers

Which type of energy raises the temperature of a substance?

<p>Sensible energy (A)</p> Signup and view all the answers

What is the sum of sensible and latent energy called?

<p>Enthalpy (C)</p> Signup and view all the answers

Which process of moisture transport involves movement from a region of higher humidity concentration to lower concentration?

<p>Diffusion (D)</p> Signup and view all the answers

What is the ratio of the mass of moisture in the air over the mass of dry air called?

<p>Absolute humidity (D)</p> Signup and view all the answers

How is relative humidity affected by temperature?

<p>It decreases with temperature (B)</p> Signup and view all the answers

What is the formula to calculate the relative humidity?

<p>Relative Humidity (%) = (Mass of Water Vapor in the Air) / (Mass of Water Vapor the Air Can Hold at That Temperature) x 100 (B)</p> Signup and view all the answers

What is the ratio of the mass of dry air to the mass of water vapor in the air called?

<p>Specific humidity (C)</p> Signup and view all the answers

Which property of windows is calculated by dividing the solar heat gain by the incident solar radiation energy?

<p>SHGC (D)</p> Signup and view all the answers

What is the formula for calculating the Total Heat Gain?

<p>ER + EA + ET = 100 % (D)</p> Signup and view all the answers

What is the formula for calculating the Projection Factor (PF) for vertical fins and overhangs?

<p>Projection Factor Calculation (A)</p> Signup and view all the answers

What drives diffusive moisture transport?

<p>Temperature difference (B)</p> Signup and view all the answers

What is the ratio of the mass of moisture in the air over the mass of dry air called?

<p>Relative humidity (D)</p> Signup and view all the answers

What unit of measurement is used to characterize the water vapor permeance of materials?

<p>Perm (A)</p> Signup and view all the answers

What is the formula for calculating the amount of water vapor a material allows through over a period of time?

<p>Perm x Area x Time (B)</p> Signup and view all the answers

Which of the following is NOT a property of windows mentioned in the text?

<p>EA (B)</p> Signup and view all the answers

What is the process called when the water phase changes from solid to liquid?

<p>Melting (A)</p> Signup and view all the answers

What is the contribution of Solar Heat Gain Coefficient (SHGC) to the Total Heat Gain?

<p>80 % (D)</p> Signup and view all the answers

Which of the following is the formula for calculating the moisture buffer capacity of a material?

<p>$g/m^2$ (D)</p> Signup and view all the answers

What is the process called when moisture sticks on the surface of a material?

<p>Adsorption (A)</p> Signup and view all the answers

What is the unit of measurement used to characterize the water vapor permeance of materials?

<p>Perm (D)</p> Signup and view all the answers

What is the formula for calculating the amount of water vapor a material allows through over a period of time?

<p>1 Perm = 1 grain/(ft^2<em>hr</em>inHg) (C)</p> Signup and view all the answers

What is the difference in Absolute Humidity that drives diffusive moisture transport?

<p>The difference in Absolute Humidity (D)</p> Signup and view all the answers

What is the ratio of Relative Humidity that drives evaporation?

<p>The ratio of Relative Humidity (D)</p> Signup and view all the answers

What is the phase of water at 0°C (32°F) and 1 atm pressure?

<p>Solid (A)</p> Signup and view all the answers

What does a good Vapor Barrier do?

<p>Keep the water out and let it out if it gets in (D)</p> Signup and view all the answers

What are the three states (phases) in which water exists around us?

<p>Solid, liquid, gas (A)</p> Signup and view all the answers

Where should the vapor barrier be set to avoid condensation?

<p>Towards the warmer side (D)</p> Signup and view all the answers

Which of the following is NOT a process that can cause phase change in water?

<p>Diffusion (C)</p> Signup and view all the answers

What is the formula to calculate the relative humidity?

<p>$RH = \frac{M_{water}}{M_{air} + M_{water}}$ (B)</p> Signup and view all the answers

What is the ratio of the mass of dry air to the mass of water vapor in the air called?

<p>Absolute Humidity (B)</p> Signup and view all the answers

Which of the following is NOT a property of water mentioned in the text?

<p>Enthalpy (B)</p> Signup and view all the answers

What is the process called when the water phase changes from solid to liquid?

<p>Melting (C)</p> Signup and view all the answers

What is the phase of water at 0°C (32°F) and 1 atm pressure?

<p>Solid (D)</p> Signup and view all the answers

What is the contribution of Solar Heat Gain Coefficient (SHGC) to the Total Heat Gain?

<p>Significant (B)</p> Signup and view all the answers

What is the formula for calculating the amount of water vapor a material allows through over a period of time?

<p>$WV = A \cdot P \cdot t \cdot R$ (A)</p> Signup and view all the answers

What is the moisture buffer capacity of a material called?

<p>Sorptivity (A)</p> Signup and view all the answers

What is the process called when the water phase changes from liquid to gas?

<p>Evaporation (D)</p> Signup and view all the answers

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