WELDING

In which of the following gas welding process a non-consumable electrode is used?

• Submerged arc welding

• Tungsten inert gas welding

• MIG

• ALL

What is the only difference between Plasma arc welding and TIG welding?

• Flux is not used

• Construction of torch is different

• Gas is not used

• Tungsten electrode is not used

Which of the following is not a type of arc welding?

• plasma

• electroslag

• air acetylene

• tig

Which of the following types of fuel gas is commonly used in gas welding?

• Biogas

• Coal gas

• Acetylene

• Methane

In gas welding, the joint can be made even much stronger than the original.

• true

• false

Which of the following is also called “gas welding”?

• Oxy fuel gas welding

• Metallic welding

• Arc welding

• Fuel gas welding

How many types of flames are there in welding?

• 1

• 2

• 3

• 4

In which of the following type of flame, oxygen is of same proportion with acetylene?

• Neutral flame

• Oxidizing flame

• Carburizing flame

• all

The oxy acetylene gas welding is a type of?

• Endothermic reaction

• Exothermic reaction

In which of the following welding process heat and pressure is applied on the joint but no filler material or flux is added?

• Arc welding

• Resistance welding

• Gas welding

• Thermite welding