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03000ME366052001

PART ட
Answer any four full questions, each carries 10 marks.
Explain the principle of operation of Needle Arc Micro Plasma welding with the

help of neat diagram.

With the help of neat diagram, explain the components used in Plasma arc
welding.

Explain the process of dry and wet underwater welding.

Explain the principle of operation of Magnetically Impelled Arc Butt welding.
List the disadvantages and risk of Underwater welding.

What are the advantages and disadvantages of Plasma Arc welding?

Explain the process of Friction welding with neat sketch.

What are the different stages in Friction welding?

List any two applications of Friction welding.

Discuss the process variants of Friction Resistance welding.

Explain Friction Stir welding.

What are the applications of Friction Resistance welding?

What are the advantages and disadvantages of Friction welding?

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