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Practice questions for this set
Learn 1 /7 Study using Learn
find the source of the moisture/increase mechanical ventilation
Choose an answer
What is the Second Law of What does the term "house as a system"
1 2
Thermodynamics? refer to?
What is the strategyto reduce the risk of
3 What is dew point? 4
mold, mildew in a conditioned space?
Don't know?
What is the Second Law of Thermodynamics? energy flows from high concentrations to low concentrations.
What is the mode of transport of most humidity in a air
home?
If a window has a U value of 0.42 and a SHGC of 0.32, 2.4
what is the window's R-value?
What factors contribute to the stack effect in a building? height of the building, the difference in outside and inside temperatures
, What is dew point? the temperature at which air reaches 100% relative humidity, water droplets may
form and fall as dew
What should be used to seal air ducts? water-based mastic
What is the Hippocratic oath? to first do no harm
What does "do no harm" refer to in home performance? safe guarding the well-being of occupants, workers, and building
Considering health and safety, where might you air seal the shared wall between the home and attached garage
first?
What is infiltration? outdoor air entering home
What is exfiltration? indoor air escaping from the home
What are the 3 forces with the most effect on a building? heat, air, moisture
What does the term "house as a system" refer to? the interaction of all components of the complete system
What phrase is commonly used to describe a building thermal bridging
material or part of an assembly that allows heat energy to
transmit more rapidly from one side of the assembly to
the other than most of the assembly?
Heat transfer measurement for heating or cooling Btu/h
equipment sizing purposes is expressed in what units?
What is the formula to convert R-value to U-value? U=1/R
The sun warming and area of the floor is an example of radiant heat transfer
what kind of heat transfer?
What does a duct pressurization leakage test allow a estimates the duct leakage while the system is operating
technician to learn?
When doing a duct pressure test, the duct system is 25 Pascals
typically pressurized to what level?
In what location within a duct system would a hole of a closest to the air handler
given size leak the most, during system operation?
When concentrating air sealing in a heating-dominated attic plane
climate where is the most cost-effective area to seal?
The blower door depressurization test is a diagnostic tool the amount of air infiltration through a building pressure boundry
that measures what?