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

The welding cost estimation of power cost is (V x A/1000) × (T/60) × (1/E) x rate per unit is formula. What is the 'E' identify?

1

Electrode consumed

2

Electrode of weld metal

3

Efficiency of machines

4

Efficiency of weld meter

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