COSC 325 MEP ACTUAL EXAM 1 QUESTIONS AND

COSC 325 MEP (ACTUAL / ) EXAM 1 QUESTIONS AND

VERIFIED ANSWERS

How would you calculate the total resistance of a composite construction component? -----Answers---By adding the resistances of all the materials used to construct that component, including those of air films and cavities

Latent heat exists in the water vapor carried by air (T/F) ----- Answers---True

External wall of a building has a U-value of .5. What does it mean? -----Answers---.5 BTUH of heat will flow through 1 sq ft area of the wall for a temperature difference of 1 * F

What makes the flow of conducted heat slow down through most insulating materials? -----Answers---Internal air spaces of the insulation

Which of the following can deliver both heating and cooling? -- ---Answers---heat pump

Which of the following components of a centrally heated building can have a surface temperature significantly lower than room air temperature? -----Answers---External glass window

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Vapor barriers are installed on or near the ___ side of a construction -----Answers---Warm

Which of the following is an indicator of the total heat in an air/water vapor mixture? -----Answers---Wet bulb temperature

Which of the following statements is true for total heat gain through glass? -----Answers---Total heat gain through glass is a sum of both solar and conducted gains

What are the 2 components used in an absorption cycle cooling equipment that are not found in other types of cooling equipment? -----Answers---absorber and generator

What is the property of a building material that allows water vapor to pass through it? -----Answers---permeability

Heat loss through some components do not fit the standard formulas. Which of the following belong to that group? ----- Answers---Heating duct outside conditioned space

Which of the following factors do not contribute to a building's heat gain in summer? -----Answers---External lighting

What are the factors that account for equivalent temperature difference (ETD)? -----Answers---Solar radiation, mass, color, and air temperature difference

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