Welding MCQ with Answers

Hydrochloric acid

Nitric acid

Phosphoric acid

Sulphuric acid

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

Induction brazing

Dip brazing

Furnace brazing

Torch brazing

Oxygen cylinder valve closed first

Acetylene cylinder valve closed first

Blow pipe oxygen valve closed first

Blow pipe actylene valve closed first

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