Welding - Welding objective questions and answers


36. Flash butt welding is.......


   A.Gas welding

   B.Arc welding with straight polarity

   C.Arc welding with reverse polarity

   D.Resistance welding


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D.Resistance welding

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37. The suitable welded material used in TIG welding is.......


   A.Aluminium

   B.Stainless steel

   C.Magnesium

   D.All of the above


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D.All of the above

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38. The following welding process uses consumable electrodes.......


   A.TIG

   B.MIG

   C.Thermit

   D.Gas


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B.MIG

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39. Preheating is essential in welding for......


   A.High speed steel

   B.Stainless steel

   C.Cast iron

   D.German silver


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C.Cast iron

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40. The phenomeon of weld decay occurs in.......


   A.Cast iron

   B.Brass

   C.Bronze

   D.Stainless steel

   E.Carbon steel


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D.Stainless steel

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