Welding - Welding objective questions and answers


6. Submerged arc welding is.......


   A.A process which uses a mixture of iron oxide and granular aluminium

   B.Accomplished by maintaining a hot molten metal pool between plates

   C.A process in which arc is maintained under a blanket of flux

   D.All of the above


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C.A process in which arc is maintained under a blanket of flux

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7. The electroslag welding is.......


   A.A process which uses a mixture of iron oxide and granular aluminium

   B.Accomplished by maintaining a hot molten metal pool between plates

   C.A process in which arc is maintained under a blanket of flux

   D.There is nothing called electroslag


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B.Accomplished by maintaining a hot molten metal pool between plates

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8. Arc-welding uses following electric supply .........


   A.A.C.

   B.D.C.

   C.Both AC and DC

   D.Spiral waveform


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C.Both A.C. and D.C.

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9. The most commonly used flame in gas welding is......


   A.Neutral

   B.Oxidising

   C.Carburising

   D.All of the above


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A.Neutral

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10. Thermit welding.......


   A.A process which uses a mixture of iron oxide and granular aluminium

   B.Accomplished by maintaining a hot molten metal pool between plates

   C.A process in which arc is maintained under blanket of flux

   D.In no welding process


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E.A process which uses a mixture of iron oxide and granular aluminium

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