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Gas Fitting
Gasfitter Red Seal Certification
Combustion & Combustion Air
Knowledge Check
Combustion & Combustion Air
Knowledge Check
Knowledge Check
1 / 6
What deadly gas is produced by incomplete combustion?
A
Carbon dioxide (CO2)
B
Carbon monoxide (CO)
C
Oxygen (O2)
D
Nitrogen (N2)
Check Answer
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