The permeability of moulding sand depends on
A)grain size
B)grain shape
C)moisture content
D)all of the above

Question

Quizplus · Accepted Answer

The permeability of moulding sand is influenced by several factors including the grain size, grain shape, and moisture content. Larger or more irregular grains can create more voids in the sand, allowing gases to pass through more easily. Similarly, the right moisture content helps in binding the sand grains together while still allowing gases to escape, ensuring that the casting does not have defects related to trapped gases.

The Permeability of Moulding Sand Depends on