BPI study test questions | Questions & Answers (100 %Score) Latest Updated 2024/2025
Comprehensive Questions A+ Graded Answers | With Expert Solutions
What is a BTU? - British Thermal Unit - the amount of energy required to heat 1 pound
of water 1 degrees Fahrenheit
Why does warm air rise? - Warm air is less dense than cool air
What is a thermal boundary? - A line or plane defined by insulation and air barrier
What is NOT a goal of air leakage control? - Meeting code (no code exists for air
leakage)
What is air leakage OUT of a house called? - Exfiltration
What happens to the neutral pressure plane of a house when you turn on all the
exhaust fans? - It would be HIGHER, more of the house is under negative pressure
What metric is used to measure a home's performance? - CFM50
What units is CFM50 measured in - Cubic feet per minute at 50 Pascals
What is not important in a strategy for reducing air leakage and providing adequate
ventilation? - Seal the home as tight as possible and make sure windows are adequate
What is a big benefit from dense packing cellulose? - Reduced air infiltration
What is found on 90% furnaces and not 80%? - Drain for condensate
CFM50 measures what? - Air tightness level of a building
What improvement will consistently give the largest envelope leakage reductions for
most houses in the US? - Air sealing all attic bypasses
What building component, if installed wrong, has a big effect on performance? -
Insulation
Max federal flow rate for faucets to be considered low flow - 1.5gpm
When estimating wall insulation, what measurement is unnecessary? - Window to wall
area
Upgrading mechanical equipment does what for a house - Decreases homes cost of
ownerhsip
, What does a psychrometer measure? - Wet bulb and dry bulb temp to ESTIMATE
humidity
1 ton of AC is how many BTUs - 12,000
First thing you do when you set up the blower door - Baseline
What org sets standards for chimney installs - NFPA
What level of AMBIENT CO should you turn off appliance, vent space, and evacuate? -
Greater than 35ppm
What do MSDS contain? - Handling instructions
What do you do when you see oily rags next to a furnace? - Inform homeowner and
continue inspection
Equation for ACH - ACH= ((60/CFM)/vol)/19
What is ACH? - air changes per hour
What insulation do you use for exterior side of sun-grade foundation wall? - Rigid
polystyrene foam board
R=1/U - U=1/R
NREL - National Renewable Energy Laboratory
RESNET - Residential Energy Services Network
ASHRAE - American Society of Heating, Refrigerating and Air-Conditioning Engineers
How to calculate HDD? - Average of high and low temp, subtract average from 65
U*A*deltaT=Q - Heat transmission equation
U= transmittance
A=area
DeltaT= difference in temp between design temp and 65
Q= heating load in BTUs per hour
Three ways heat moves - conduction, convection, radiation
potential energy - stored energy
kinetic energy - energy of motion
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