insulation of __% of building shell triggers blower door requirement - correct
answer ✔15%
Air flow standard in ASHRAE ___ - correct answer ✔ASHRAE 62.2 (updated
9.2015)
min BAS before requiring mechanical ventilation - correct answer ✔no longer
using (9/2015)
rise on ventilation ductwork - correct answer ✔1/4" per foot
dense pack cellulose minimum - correct answer ✔3.5 pounds per cubic foot
duct leakage to outside standard - correct answer ✔EPA Energy Star Ducts
duct leakage to outside calculation - correct answer ✔Total allowable to
outside=system airflow x .10
materials (2) for sealing ductwork - correct answer ✔mastic and fsk tape
bafflings min around nonIC rated cans and chimneys - correct answer ✔3"
single wall flue pipe minimum clearance - correct answer ✔6"
,cold side air barriar on kneewall insulation - correct answer ✔plywood or
housewrap
attic hatch insulation minimum requirements - correct answer ✔R-14 and
tightly fitting
safety equipment list (6) - correct answer ✔respirator with cartridges, gloves,
safety glasses, protective clothing, duct masks, hard hat (as required)
max level of "safe" CO concentration - correct answer ✔35ppm or 9 ppm
over 8 hour period
CAS inspection tests (4) - correct answer ✔spillage, CO test, worst-case
depressurization, draft
highest priority in air sealing - correct answer ✔leakage to attic because of
stack effect
gas line replacement date - correct answer ✔If manufactured before 1973
ASHRAE standard for exposure to CO - correct answer ✔8 hours exposure
at 9 ppm
definition of energy - correct answer ✔measurable quantity of heat, work or
light
match to btu to therm - correct answer ✔1 match = 1 btu
100,000 btu = therm
, conduction - correct answer ✔heat flow through solid objects
convection - correct answer ✔heat flow through a fluid (air or water)
raditation (2 types) - correct 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 - correct answer ✔solar
infrared - heat radiation from objects on earth
HDD - correct answer ✔any day below 65 degrees
Cooling degree days - correct answer ✔days over 78 degrees
relative humidity - correct answer ✔measures how saturated the air is w
percentage of water vapor
warmer air - correct answer ✔holds more water vapor
latent heat - correct answer ✔hidden heat released when substances
change form
energy load on a house (2 types) - correct answer ✔seasonal
baseload - water heating, Dryer, refrige