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Solidification time of a metallic alloy casting is
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- Directly proportional to its surface area
- Inversely proportional to the specific heat of the cast material
- Inversely proportional to the thermal diffusivity of the mould material
- Inversely proportional to the pouring temp
Correct Option: D
| α = | , α → Thermal Diffusivity | |
| ρCP |
as ↑ t (Solodification time)↓
