Gas Metal Arc Welding MCQ with Answers

Gas Metal Arc Welding MCQ with Answers

101) What is the name of the welding defect, with weld metal contracting during welding process?

Answer is:

Distortion

102) What is the name of the defect occuring to an unsteady hand in GMAW?

Answer is:

Waviness of bead

103) What defects occurs to a weld joint, if it is provided with insufficient heat input?

Answer is:

Lack of penetration

104) What gas combination will reduce spatter defect and improve arc stability in a MIG/MAG welding process?

Answer is:

Argon / CO2 / O2