engineering recuitment DRDO Technician A 2022 Mock Test Series (Tier I) Fitter Joining Welding

How the construction of a nozzle for gouging is identified?

1

Straight nozzle with single preheating hole

2

Bent nozzle with sectorial preheating holes

3

Fully bent nozzle with circular preheating holes

4

Slightly bent nozzle with circular preheating six holes

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