A.low mould hardness
B.insufficient reinforcement
C.low green strength
D.any of the above
Related Mcqs:
- A casting process which can produce cylinders by inserting cores into molten metal poured in the mould is
- A mould which has good erosion resistance to metal flow and is also collapsible is
- The passage way of bringing the molten metal to the mould cavity is known as
- If dross and slag along with the liquid metal reach the mould cavity they produce the defect known as_______________?
- A defect in castings in which a discontinuity is formed due to the imperfect fusion of two streams of metal in the mould cavity is known as
- The property of sand to withstand the high temperature of the molten metal without fusing or breakdown is known as
- The sand used for sprinkling on the patterns/parting surface of the mould is known as
- During the passage of molten metal through the coke, the carbon percentage of the molten metal increases. The absorption of carbon depends on
- Machinability of metal depends on
- The purpose of clay in a moulding sand is to
