WELDING 4 TIG AND CO2 WELDING - Practice Mode

1) What is the flow rate of argon gas to weld Aluminium of 5.0 mm thickness with filler rod of 3.15 mm?

300 - 340 l/h 340 - 400 l/h 450 - 510 l/h 510 - 570 l/h

Correct Answer: 450 - 510 l/h

2) Which is the process of rapid cooling of metal from a high temperature for the purpose of hardening?

Drilling Pickling Quenching Soaking

Correct Answer: Quenching

3) Which is the recommended AWS filler metal for welding austenitic stainless steel Type 302 for GTAW process?

E 308 E 308 L ER 308 L E 308 LT - X

Correct Answer: E 308

4) What is the recommended tungsten electrode tip for DCEN used for welding stainless steel in GTAW process?

45 Degree bevel edged 60 Degree conical point 90 Degree conical pointed Ball pointed

Correct Answer: 60 Degree conical point

5) What is the recommended tungsten electrode tip used for GTAW in AC polarity?

Bevel tip Conical tip Rounded tip Straight tip

Correct Answer: Rounded tip

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