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Welder
Welder Set-1
Welding Techniques
11

Welding Techniques MCQ with Answers

11) Which of the following gas is used in TIG welding?

Helium

Oxygen

Hydrogen

Carbon dioxide

Answer is:

Helium

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12) Which of the accessories should be worn during overhead welding?

Helmet

Sun glass

Hand screen

Welding goggles

Answer is:

Helmet

Explanation:

Helmet should be worn during overhead welding.

Which of the accessories should be worn during overhead welding?

13) Which one of the following do not assist fire?

Fuel

Oxygen

Ignition

Nitrogen

Answer is:

Nitrogen

14) Which type of polarity is used in aluminium welding?

Rectifier set

AC Transformer

Reverse polarity

Straight polarity

Answer is:

Reverse polarity

15) What is polarity?

Circuit of current

Direction of current

Open circuit of current

Opp direction of current

Answer is:

Direction of current

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