Multiple Choice Question (MCQ)

Question: What is the normal preheating temperature for Aluminium Welding by TIG process?
A. 100 Degree - 120 Degree Centigrade
B. 160 Degree - 180 Degree Centigrade
C. 180 Degree - 205 Degree Centigrade
D. 200 Degree - 220 Degree Centigrade
Correct Answer: 180 Degree - 205 Degree Centigrade