Q1: Cast iron compared to steel is better in

ANS:D - fluidity & castability

Cast iron compared to steel is typically better in terms of fluidity and castability. Here's why:

1. Fluidity: Cast iron has better fluidity compared to steel. Fluidity refers to the ability of molten metal to flow and fill intricate mold cavities during the casting process. Cast iron's higher fluidity allows it to fill complex molds with greater ease, resulting in detailed and intricate castings.
2. Castability: Cast iron is easier to cast compared to steel. Castability refers to the ease with which a material can be cast into a desired shape. Cast iron has a lower melting point and better fluidity, making it more suitable for casting processes such as sand casting, die casting, and investment casting. Steel, on the other hand, requires higher melting temperatures and may have lower fluidity, making it more challenging to cast complex shapes.

While cast iron may have advantages in fluidity and castability, it generally lags behind steel in terms of ductility, strength, and malleability. Steel typically offers higher ductility, strength, and malleability compared to cast iron, making it more suitable for applications requiring toughness, durability, and structural integrity.