RAC
In a lap joint ———–
- The plates are joined at the edges
- The plates are kept on over other
- One plate is kept horizontally
- Other is vertical
In oxidizing welding flame proportion of ———-
- Acetylene is less than air
- Air is less than acetylene
- Acetylene is equal to air
- None of these
The temperature in a neutral flame with oxyacetylene welding is ——
- 3260°C
- 3500°C
- 2500°C
- 2800°C
The filler metal used in brazing has melting point of above-
- 200°C
- 300°C
- 420°C
- 520°C