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Académie
Gas Fitting
Gasfitter Red Seal Certification
High-Efficiency Furnaces & Safety Devices
Vérification des connaissances
High-Efficiency Furnaces & Safety Devices
Vérification des connaissances
Vérification des connaissances
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What causes a cracked heat exchanger?
A
Low gas pressure
B
Normal operation
C
High gas pressure
D
Thermal stress, corrosion, or poor airflow
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