1. Explain briefly about soldering. 2. Explain the principle of arc welding with a figure. 3. Name the three types of oxy-acetylene flame. Explain the application of each of them.


1. Explain briefly about soldering.


2. Explain the principle of arc welding with a figure.


3. Name the three types of oxy-acetylene flame. Explain the application of each of them.

Nov 18, 2021
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