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Welder Set-1
Gas Tungsten Arc welding
27

Gas Tungsten Arc welding MCQ with Answers

27) What is the purpose of inert gas used in TIG welding?

Contamination in the weld metal

To protect the molten metal from the atmospheric contamination

To stabilize the Arc

To get more spatters

Answer is:

To protect the molten metal from the atmospheric contamination

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Related Gas Tungsten Arc welding MCQ with Answers

28) Which gas is used as inert gas in GTAW for increased speed?

Oxygen

Helium

Acetylene

Hydrogen

Answer is:

Hydrogen

29) How much temperature GTAW process can produce?

3000 Degree F

3500 Degree F

4000 Degree F

4500 Degree F

Answer is:

3000 Degree F

30) What is the main source of heat to the workpiece in TIG welding?

Cable current

By Torch

By tube

By electrode

Answer is:

Cable current

31) How heat effected zone is covered and protected from atmospheric contaminations in GTAW?

Argon gas

Oxygen gas

Fuel gas

Active gas

Answer is:

Argon gas

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