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Welding - 4. TIG and CO2 Welding
14

Welding - 4. TIG and CO2 Welding MCQ with Answers

14) 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

Answer is:

60 Degree conical point

Welding - 4. TIG and CO2 Welding MCQ with Answers

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Related Welding - 4. TIG and CO2 Welding MCQ with Answers

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

Bevel tip

Conical tip

Rounded tip

Straight tip

Answer is:

Rounded tip

16) What is the defect caused by air mixed with gas in CO₂ welding?

Over lap

Blow hole

Incomplete penetration

Excess wide bead

Answer is:

Blow hole

17) What is the cause for excessive wide bead while welding in CO₂ process?

in adequate gas flow

welding current too low

too small dia of nozzle

welding speed too low

Answer is:

welding speed too low

18) What is the defect caused by high current and low voltage in GMAW process?

Spatter

Undercut

Incomplete fusion

Crack on base metal

Answer is:

Crack on base metal

Welding - 4. TIG and CO2 Welding MCQ with Answers

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