Identify the correct statement(s) pertaining to gas welding from among the given options.
I. Gas welding torch tip has separate holes for oxygen and acetylene.
II. Gas welding employs nitrogen gas.
III. Gas welding is also known as the oxy-acetylene welding process.
1
Statement III is true
2
Statements I and III are true
3
Statement II is true
4
Statement I is true
5
Question Not Attempted