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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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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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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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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