railway RRB JE (CBT I + CBT II) Mock Test 2024 Production Engineering (Manufacturing) Joining Welding
In an arc welding process, the voltage and current are 25 Volts and 300 amperes respectively. The arc heat transfer efficiency is 0.85 and welding speed is 8 mm/s. the net heat input (in J/mm) will be:
1
796.8
2
684.2
3
620.7
4
721.6