Welding Operations & FCAW Essentials Verified Questions and Answers for Technicians.pdf

Welding Operations & FCAW Essentials |
Verified Questions and Answers for
Technicians
What metals are often welded using FCAW? - ✔✔Carbon, alloy steels, and stainless steels



What does the term FCAW-G mean? - ✔✔Externally supplied shielding gas is used



What gas or gas mixtures are commonly used for FCAW? - ✔✔C02 or a mixture of Argon C02



Describe the two FCAW processes commonly used? - ✔✔Gas shielded and self shielded



Which of the 2 above is the electrode stickout most important, why? - ✔✔Self shielded.

Can have an electrode stick out of 3" or more



Which polarity is most often use with gas shielded wires? - ✔✔Reverse Polarity



Can DC straight polarity be used for FCAW? - ✔✔Yes for some self shielded wires



To change from .035 GMAW to .045 FCAW what would you have to change? - ✔✔The contact tip and
drive rolls



What electrode extension is commonly used for .045 FCAW-G? - ✔✔3/8 to 3/4



How are FCAW gun/hose/cable assemblies rated? - ✔✔current carrying capacity



List the guidelines used to consider when selecting an FCAW power source: - ✔✔rated output

duty cycle

process capability