railway RRB JE (CBT I + CBT II) Mock Test 2024 Production Engineering (Manufacturing) Joining Welding
Consider the following statements:
(i) Arc is created between a metal electrode and a workpiece
(ii) Arc is created between two metal electrodes
(iii) Arc is created between two workpieces
1
(i) is true
2
(i) and (ii) are true
3
(iii) is true
4
(i), (ii) and (iii) are true