The flame used in cutting and welding of metals is ______?

دھاتوں کو کاٹنے اور ویلڈنگ میں استعمال ہونے والی شعلہ ______ ہے؟

Polythene

Oxyacetylene

Ethylene

None of these

Oxyacetylene flame is used in welding and cutting metals due to its high temperature.

It provides a flame temperature of about 3200°C, making it suitable for industrial applications.