Welding Techniques MCQ with Answers

Welding Techniques MCQ with Answers

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

Answer is:

Helium

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

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?

Answer is:

Nitrogen

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

Answer is:

Reverse polarity

15) What is polarity?

Answer is:

Direction of current