Can any buddy here please provide me the previous year question paper of Punjab Technical University (PTU) - M.Tech Production Engineering Welding Technology Exam????

Here I am providing you the previous year question paper of Punjab Technical University (PTU) - M.Tech Production Engineering Welding Technology Exam

Ql) What do you understand by solidification mechanism. Explain Epitaxial
solidification. -

Q2) What should be the basic characteristics of a power source used for arc
weldingExplain a thyristor controlled rectifier.

Q3) What are coated electrodes. Discuss the role of flux ingyadientsand shielding
gases.on electrodes. .

Q4) What'is cold pressure welding. Discuss the mechanism of cold pressure
welding. Write the limitations of cold pressure Welding. '

Q5) What is arc blow. Discuss the mechanism of arc blow. Write the effects and
remedies of arc blow. . .

Q6) What is meant by metal transfer. Explain the mechanism'of free-flight metal
transfer.



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