A.Mak the mould permeable
B.Act as a binder in the mould
C.Make the mould refractory
Related Mcqs:
- Sodium silicate in sand in often used as
- Shell moulding is a process in which
- Mixing coal dust with moulding sand results in
- First step in reclaiming the moulding and core sand is
- The purpose of sometimes adding exothermic materials to sand is
- The sand mass does not fall out of the moulding box but is held firmly in it when the moulding box is lifted. This is due to the property of
- Clay used for foundry sand should be
- Clay content of green sand is usually
- Mixture of clay, silt and sand is known as ________:
- Permeability of moulding sand is increased due to/by
