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

राईटवर्ड वेल्डिंग द्वारा फिलर रॉड का कोण कितना होना चाहिए?

1
30° - 40°
2
40° - 50°
3
50° - 60°
4
60° - 70°
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