BPI Health and Safety 3

Question 1

What does the term 'worst-case depressurization' measure in BPI combustion safety testing?

Accepted Answer

Combustion appliance zone (CAZ) pressure with all exhaust fans and appliances running simultaneously

Answer

Worst-case depressurization tests the CAZ pressure with all exhaust devices operating simultaneously to find the maximum depressurization the space can experience.

Question 2

Which symptom is most commonly associated with acute low-level carbon monoxide poisoning?

Accepted Answer

Headache and dizziness

Answer

Headache and dizziness are hallmark early symptoms of CO poisoning because CO displaces oxygen in the blood, starving the brain.

Question 3

What is the purpose of a spillage test performed at the draft hood of a naturally aspirated water heater?

Accepted Answer

To confirm combustion gases are exhausting up the flue and not spilling into the home

Answer

A spillage test uses smoke or a mirror to verify that flue gases are being drawn up the vent rather than spilling into the conditioned space.

Question 4

Lead-based paint is most hazardous to human health when it is in which condition?

Accepted Answer

Chalking, flaking, or being sanded and disturbed

Answer

Deteriorating or disturbed lead paint releases lead dust and chips, which are the primary exposure pathways causing lead poisoning.

Question 5

A BPI analyst finds CO readings of 400 ppm in the flue of a gas furnace during steady-state operation. What action is required?

Accepted Answer

Immediately red-tag and shut down the appliance as it exceeds the 400 ppm threshold

Answer

BPI standards require immediate red-tagging and shut-down of any combustion appliance with undiluted flue CO at or above 400 ppm air-free.

(BPI) Building Performance Institute Certified Practice Test

(BPI) Building Performance Institute Certified Practice Test

BPI Health and Safety 3