engineering recuitment Vizag Steel MT Mechanical 2020 Test Series Production Engineering (Manufacturing) Joining Welding
Carburising flame is characterised by:
1
supply of acetylene is in excess as compared to oxygen and this flame has three zones
2
supply of acetylene is in excess as compared to oxygen and this flame has two zones
3
supply of oxygen is in excess as compared to acetylene and this flame has two zones
4
supply of oxygen is in excess as compared to acetylene and this flame has three zones