Copper Questions And Practical Flashcards
When using an oxyacetylene torch the type of flame that should be used is what?
Neutral flame
The amount of Flux applied to a tube and fitting joint should be?
Thin on the tube and fitting.
An oxyacetylene flame has a peak temperature of about ___________ degrees F.
6300°F
Explain how the consistency of the brazing Flux changes as heat is applied to the joint.
It goes from a solid to a liquefied metallic state using capillary action to seal the joint when cooled.
Name four types of copper tube joints
Solder
Brazed
Flared
Compression
What is the primary purpose of flux?
To create a capillary action when making solder joints as well as removing oxides from the joint area during heating and ensures the melted solder will wet and coat the surfaces being joined creating a seal.
Fluxes are classified into what three general groups?
Non Corrosive
Highly Corrosive
Intermediate
What is the difference between soldering and brazing?
Temperature
What are three types of copper water tube.
Type K
Type L
Type M
What is capillary action?
Flow of a liquid when it is drawn to the small places between surfaces drawn to the heat.
Practical instructions
Practical Model
Practical Grading Scale
