arc 331

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73118
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arc 331
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2011-03-15 17:18:31
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arc 331
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  1. 1. If you only add moisture to the air in which direction is the movement in the psychrometric chart?
    a) to the top
    b) to the right
    c) to the left
    d) to the bottom
    e) none of the above
    to the top
  2. 2. You are designing a building for a very hot location. Which of the following is a better method to
    reduce solar heat gain (heat gain by radiation) through the windows so that the building does not
    overheat:
    a) Interior venetian blinds
    b) Exterior shutters
    c) Interior curtains
    d) Double glazed windows
    B
  3. 4. When is the sun lowest in the sky in North America?
    a) March 21
    b) June 21
    c) September 21
    d) December 21
    D
  4. 5. In an enclosed space with a heated ceiling the air will naturally convect from the top to the bottom
    because the air at the top has a lower density.
    a) True b) False
    B
  5. What type of solar protection is creating this shadow mask in the sun path diagram?
    a) a fin
    b) an overhang
    c) a combined system with a fin and a mask
    d) none of the above
    e) it is impossible to determine because the information is incomplete
    B
  6. 9. What can I use to measure sensible heat of the air?
    a) a thermometer
    b) an anemometer
    c) a wet bulb thermometer
    a) a thermostat
    A
  7. 10. You must design the shading system for a window that is 6 ft wide. After determining potential
    overheated hours and doing the analysis with the sun path diagram and the shadow angle protractor you
    determine that you need a Vertical Shadow Angle (VSA) of 45 degrees. You are consulting for the
    designer and he wants to place two horizontal elements instead of just one overhang. What is the
    required dimension of these two elements to provide the required shading?
    a) 6 ft each
    b) 3 ft each
    c) 1 ft each
    d) 4.5 ft each
    B
  8. 12. Which of these has more energy stored inside?
    a) 1lb of concrete at 100 F
    b) 2lbs of concrete at 100 F
    c) 1 lb of concrete at 200 F
    d) 2 lbs of water at 200 F
    D
  9. 13. What requires more heat?
    a) To change the state of one pound of water from a liquid to a gas (evaporate)
    b) To raise the temperature of a pound of water from 80 F to 85 F.
    c) To raise the temperature of water from 85 F to 86 F
    d) To melt one pound of water
    A
  10. 14. Which of these forms of heat can be transferred through vacuum?
    a) heat by conduction
    b) heat by radiation
    c) heat by convection
    B
  11. 15. What is the resistance of a 0.5” air space in a horizontal roof and in which the heat is moving up. The
    air space has aluminum foil on both of its sides. The mean temperature is 50 F and the temperature
    difference is 30 F.
    a) 0.96
    b) 1.29
    c) 1.57
    d) 1.62
    D
  12. 16. Peter Simmonds came to our class on Friday as a guest lecturer. He was
    a) A reality show star
    b) a retired rocker
    c) a mechanical engineer
    d) an architect
    C
  13. 17. What are the optimum tilt and orientation for photovoltaic panels in a city in South America that is
    located at a latitude of 35 degrees south?
    a) 35 degree tilt and oriented west
    b) 45 degree tilt and oriented north
    c) 35 degree tilt and oriented south
    d) 35 degree tilt and oriented north
    e) 45 degree tilt and oriented north
    D

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