engineering recuitment UPPSC AE Mock Test 2024 Production Engineering (Manufacturing) Joining Welding
Oxygen to acetylene ratio in case of neutral flame by weight is
1
0.8 ∶ 1.0
2
3 ∶ 1
3
1.2 ∶ 1
4
2 ∶ 1
Oxygen to acetylene ratio in case of neutral flame by weight is