Questions and Answer All Correct
(Already Graded A+)
What does "do no harm" refer to in home performance? - Answer ✔ safe guarding the
well-being of occupants, workers, and building
Considering health and safety, where might you air seal first? - Answer ✔ the shared
wall between the home and attached garage
What is infiltration? - Answer ✔ outdoor air entering home
What is exfiltration? - Answer ✔ indoor air escaping from the home
What are the 3 forces with the most effect on a building? - Answer ✔ heat, air, moisture
What does the term "house as a system" refer to? - Answer ✔ the interaction of all
components of the complete system
What phrase is commonly used to describe a building 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? - Answer ✔ thermal bridging
Heat transfer measurement for heating or cooling equipment sizing purposes is
expressed in what units? - Answer ✔ Btu/h
What is the formula to convert R-value to U-value? - Answer ✔ U=1/R
The sun warming and area of the floor is an example of what kind of heat transfer? -
Answer ✔ radiant heat transfer
What does a duct pressurization leakage test allow a technician to learn? - Answer ✔
estimates the duct leakage while the system is operating
When doing a duct pressure test, the duct system is typically pressurized to what level?
- Answer ✔ 25 Pascals
, In what location within a duct system would a hole of a given size leak the most, during
system operation? - Answer ✔ closest to the air handler
When concentrating air sealing in a heating-dominated climate where is the most cost-
effective area to seal? - Answer ✔ attic plane
The blower door depressurization test is a diagnostic tool that measures what? -
Answer ✔ the amount of air infiltration through a building pressure boundry
Pascals and "inches of water column" are units of measure of what? - Answer ✔ air
pressure
What happens to the draft in a natural draft combustion venting system as the outdoor
temperature varies? - Answer ✔ draft decreases as the exterior temperature rises
Relevant data for looking up heating furnace information is located where? - Answer ✔
on the data plate located inside the furnace cabinet
Which of the following designations is used to rate the efficiency of a furnace? - Answer
✔ AFUE
For a heating system with a sealed combustion venting system, where does the
combustion air come from? - Answer ✔ it uses outdoor air brought in through an intake
pipe or duct
What is the Second Law of Thermodynamics? - Answer ✔ energy flows from high
concentrations to low concentrations.
What is the mode of transport of most humidity in a home? - Answer ✔ air
If a window has a U value of 0.42 and a SHGC of 0.32, what is the window's R-value? -
Answer ✔ 2.4
What factors contribute to the stack effect in a building? - Answer ✔ height of the
building, the difference in outside and inside temperatures
What is dew point? - Answer ✔ 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? - Answer ✔ water-based mastic
What is the Hippocratic oath? - Answer ✔ to first do no harm