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Académie
HVAC
HVAC Excellence Employment Ready Certification
Tool Identification - Essential HVAC Instruments & Equipment
Vérification des connaissances
Tool Identification - Essential HVAC Instruments & Equipment
Vérification des connaissances
Vérification des connaissances
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What is the purpose of flowing dry nitrogen through copper tubing while brazing?
A
To verify that the tube is free of leaks before brazing
B
To cool the tubing faster and protect the joint from heat
C
To increase the pressure inside the tube for simultaneous leak testing
D
To prevent oxidation scale from forming inside the copper tubing
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