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Oxy acetylene welding and oxy-hydrogen welding are the examples of ____ welding.
The pressure of acetylene in welding torch for oxy-acetylene welding is maintained at _________
Which of the following statement(s) is/are true regarding butt welding? 1. Flash butt welding is a combination of resistance, arc and pressure welding 2. Upset butt welding is used for welding rods 3. Percussion Welding is a self timing spot welding method 4. Aluminium alloys are flash welded
Theoretical volume of oxygen required for complete combustion of 1 Nm3 of acetylene, in oxy-acetylene welding is __________ Nm3 .
While the oxy-acetylene flame produces a temperature of 3200°C, the temperature produced by oxy-hydrogen flame is about __________ °C.
Consider the following statements: In metal arc welding 1. Utilizes a consumable electrode 2. A welding torch used is connected to acetylene gas supply 3. The electrode and work-piece are connected to the welding power supply. Which of these statements are correct?
Most of the oxy-acetylene welding is done with
Oxy-acetylene welding is categorised in
For what thickness of a material, in an oxy-acetylene is a welding rod used?
Which two of the following joining processes are autogenous? i. Diffusion welding ii. Electroslag welding iii. Tungsten inert gas welding iv. Friction welding