WELDING - Quiz

1) Which acid is used as a flux for stainless steel in soldering?

Hydrochloric acid Nitric acid Phosphoric acid Sulphuric acid

2) Which flux is used in iron and steel while brazing?

Mixture of 70% borax powder with 30% boric acid Mixture of 75% borax powder with 25% boric acid Mixture of 80% borax powder with 20% boric acid Mixture of 85% borax powder with 15% boric acid

3) What is the name of brazing if parts to be brazed are submerged in a molten or chemical both?

Induction brazing Dip brazing Furnace brazing Torch brazing

4) Which one is closed first while shutdown oxy-acetylene plant?

Oxygen cylinder valve closed first Acetylene cylinder valve closed first Blow pipe oxygen valve closed first Blow pipe actylene valve closed first

5) What is the angle of blow pipe held in right ward welding?

Blow pipe held at an angle of 40 Degree- 50 Degree Blow pipe held at an angle of 30 Degree- 40 Degree Blow pipe held at an angle of 20 Degree- 30 Degree Blow pipe held at an angle of 10 Degree- 20 Degree