Exam (elaborations)
NCCER HVAC Level 1 Questions with complete solution 2023/2024
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NCCER HVAC Level 1 Questions with complete solution 2023/2024What is a neutral flame? - correct answer Equal parts oxygen and acetylene What is a carburizing flame? - correct answer A cooler flame used for light brazing. At what PSI does Acetylene become unstable? - correct answer ...
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