A.Blow holes
B.Pin holes
C.Gas holes
D.Slag holes
Related Mcqs:
- Graphite is sprinkled on to the surface of green sand moulds to
- If dross and slag along with the liquid metal reach the mould cavity they produce the defect known as_______________?
- If an old casting is to be used as a pattern, to account for various allowances.
- If ash content of coke used in cupola is high then
- Rough surface of casting may result from
- A 12 mm drilling machine means
- During burning of grain boundaries
- Blow holes in castings are due to
- The tool used to make small holes in the sand mould to allow passage of gases/steam is known as
- Sintered tungsten carbides can be machined by
