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Plumber Set-1
Welding
14

Welding MCQ with Answers

14) Which type of flux removes oxides on base metal surface?

Inorganic fluxes

Organic fluxes

Resin

Tallow

Answer is:

Inorganic fluxes

Welding MCQ with Answers

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Related Welding MCQ with Answers

15) Which is organic flux?

Hydrochloric acid

Zinc chloride

Ammonium chloride

Tallow

Answer is:

Tallow

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

Hydrochloric acid

Nitric acid

Phosphoric acid

Sulphuric acid

Answer is:

Phosphoric acid

17) 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

Answer is:

Mixture of 75% borax powder with 25% boric acid

Which flux is used in iron and steel while brazing?

18) 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

Answer is:

Dip brazing

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