G2 Gas Technician Module 13 Revised
Exam Questions and answers with
100% Complete Solutions | verified
&updated 2024
What cfm ventilation does the ontario building code require in the master
bedroom and all other rooms? - ✔✔Other rooms - 10 cfm
What is latent heat? - ✔✔Change in state with no change in temperature
What is sensible heat? - ✔✔Change in temperature with no change in state
If a house has poor ventilation what would the affect be on indoor air quality? -
✔✔High relative humidy
, Pollution sources in the building envelope - ✔✔Biological(mold, mildew,
bacteria), chemicals (off -gasing of furniture, carpets and building materials), dust
from inside and outside, any combination of these
How would you control pollution? - ✔✔Remove the source, Balanced hvac
throughout house, local exhausts (bath, kitchen), substitute chemicals for non-
polluting ones, and Filtration is best for remove dust pollutants
How can positive pressure affect the building envelope? - ✔✔Conditioned air will
be forced from the building envelope, inefficient
How does negative pressure affect the building envelope? Potential concerns? -
✔✔Outdoor air will be sucked into the house by path of least resistance.
Sometimes this is your appliances exhaust vent. Can lead to spillage and
CO poisoning
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