BPI Practice Questions with Correct
Answers
The drainage plane of the building is best described as what? - Answer-The space between
the exterior cladding and wall system used to redirect moisture
what information can be determined based on the measurements of a sling pychrometer? -
Answer-Rel...
a missing ______ could cause condensation on the underside of roof sheeting - Answer✔✔-a
vapor barrier at the attic floor
why are vapor barriers (retarders) used ? - Answer✔✔-to slow the diffusion of moisture through
building materials
what strategy yields the largest envelope leakage reduction in a wide variety of houses? -
Answer✔✔-air sealing attic bypasses
stack effect is best described as a force of what? - Answer✔✔-the drives infiltration/exfiltration
with relation to its building height
what direction will air flow always move? - Answer✔✔-from high pressure to low pressure
which of the following is a property of warm air? - Answer✔✔-it is less dense than cold air
which variable has the greatest effect on the natural air leakage in a building? - Answer✔✔-the
location of any holes in the envelope
stack effect occurs when densities are what? - Answer✔✔-different from inside to outside
for every cubic foot of air that leaves a house how many cubic feet must enter? - Answer✔✔-1
in houses with attached garages which should be done to ensure health and safety? -
Answer✔✔-eliminate pollutant pathways into the living space
which of the following is typically the most significant source of air leakage? - Answer✔✔-attic
bypass
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