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BPI Exam Correct 2024/2025 Solution verified
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BPI Exam Correct 2024/2025 Solution verified
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Passed!!2024/2025
BPI Exam Correct
insulation of __% of building shell triggers blower door requirement Answer:
15%
Air flow standard in ASHRAE ___ Answer: ASHRAE 62.2 (updated 9.2015)
min BAS before requiring mechanical ventilation Answer: no longer using
(9/2015)
rise on ventilation ductwork Answer: 1/4" per foot
dense pack cellulose minimum Answer: 3.5 pounds per cubic foot
duct leakage to outside standard Answer: EPA Energy Star Ducts
duct leakage to outside calculation Answer: Total allowable to
outside=system airflow x .10
materials (2) for sealing ductwork Answer: mastic and fsk tape
bafflings min around nonIC rated cans and chimneys Answer: 3"
single wall flue pipe minimum clearance Answer: 6"
, Passed!!
2024/2025
cold side air barriar on kneewall insulation Answer: plywood or housewrap
attic hatch insulation minimum requirements Answer: R-14 and tightly fitting
safety equipment list (6) Answer: respirator with cartridges, gloves, safety
glasses, protective clothing, duct masks, hard hat (as required)
max level of "safe" CO concentration Answer: 35ppm or 9 ppm over 8 hour
period
CAS inspection tests (4) Answer: spillage, CO test, worst-case
depressurization, draft
highest priority in air sealing Answer: leakage to attic because of stack effect
gas line replacement date Answer: If manufactured before 1973
ASHRAE standard for exposure to CO Answer: 8 hours exposure at 9 ppm
definition of energy Answer: measurable quantity of heat, work or light
match to btu to therm Answer: 1 match = 1 btu
100,000 btu = therm
conduction Answer: heat flow through solid objects
, Passed!!
2024/2025
convection Answer: heat flow through a fluid (air or water)
raditation (2 types) Answer: heat waves traveling through space (ex sun)
from sun - solar
from objects - thermal
crosses empty space or air without heating it
types of radiation Answer: solar
infrared - heat radiation from objects on earth
HDD Answer: any day below 65 degrees
Cooling degree days Answer: days over 78 degrees
relative humidity Answer: measures how saturated the air is w percentage of
water vapor
warmer air Answer: holds more water vapor
latent heat Answer: hidden heat released when substances change form
energy load on a house (2 types) Answer: seasonal
baseload - water heating, Dryer, refrige
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