BPI EP Practice Questions
The temperature equaled to or exceeded 99% of the time during the three
coldest months is - correct answer ✔design temperature actual
what can a HDD day be used to calculate? - correct answer ✔actual heating
loads
MMBTU/ yr is generally used to express what - correct answer ✔annual
heating load
which unit would be most helpful for comparing the cost of different sources of
energy such as natural gas, electricity, and heating oil? - correct answer
✔millions BTU
determine peak electrical energy demand - correct answer ✔the highest total
wattage of the electrical operated devices in use at a given time
optimal percentage that household moisture should generally be between -
correct answer ✔40-60% RH
IAQ issues can occur when the surface is at or below dew point due to lack of
insulation - correct answer ✔
what is the primary moving force for moisture inside a typical home? - correct
answer ✔airflow
, when does condensation occur on a surface? - correct answer ✔when the
dew point temperature of the air in contact with it is greater than the surface
temperature
(when the surface is below dew point, you get condensation)
the principal function of a vapor retarder is to reduce what? - correct answer
✔moisture flow by diffusion
the thermal boundary.... - correct answer ✔-limits heat flow between inside
and outside
- is easy to identify by presence of insulation
the air barrier ... - correct answer ✔- limits airflow between inside and outside
- is located using the blower door
air leakage requires ... - correct answer ✔a hole and a pressure difference
across that hole
indirect leakage ... - correct answer ✔enters at one location, moves through
building cavities, and exits at a different location
cold air enters from - correct answer ✔below the neutral pressure plane
pressure moves from - correct answer ✔high to low
prioritize air sealing by stack effect ABC - correct answer ✔attic, basement,
conditioned space
The temperature equaled to or exceeded 99% of the time during the three
coldest months is - correct answer ✔design temperature actual
what can a HDD day be used to calculate? - correct answer ✔actual heating
loads
MMBTU/ yr is generally used to express what - correct answer ✔annual
heating load
which unit would be most helpful for comparing the cost of different sources of
energy such as natural gas, electricity, and heating oil? - correct answer
✔millions BTU
determine peak electrical energy demand - correct answer ✔the highest total
wattage of the electrical operated devices in use at a given time
optimal percentage that household moisture should generally be between -
correct answer ✔40-60% RH
IAQ issues can occur when the surface is at or below dew point due to lack of
insulation - correct answer ✔
what is the primary moving force for moisture inside a typical home? - correct
answer ✔airflow
, when does condensation occur on a surface? - correct answer ✔when the
dew point temperature of the air in contact with it is greater than the surface
temperature
(when the surface is below dew point, you get condensation)
the principal function of a vapor retarder is to reduce what? - correct answer
✔moisture flow by diffusion
the thermal boundary.... - correct answer ✔-limits heat flow between inside
and outside
- is easy to identify by presence of insulation
the air barrier ... - correct answer ✔- limits airflow between inside and outside
- is located using the blower door
air leakage requires ... - correct answer ✔a hole and a pressure difference
across that hole
indirect leakage ... - correct answer ✔enters at one location, moves through
building cavities, and exits at a different location
cold air enters from - correct answer ✔below the neutral pressure plane
pressure moves from - correct answer ✔high to low
prioritize air sealing by stack effect ABC - correct answer ✔attic, basement,
conditioned space
