Exam (elaborations)
NCCER HVAC Level 1, Module 8 - Soldering Brazing Exam Questions 2024.
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NCCER HVAC Level 1, Module 8 - Soldering Brazing Exam Questions 2024. What is a neutral flame? Equal parts oxygen and acetylene What is a carburizing flame? A cooler flame used for light brazing. At what PSI does Acetylene become unstable? 15 psi What do you use to light a torch?...
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