Q1: Cast iron has the unique property of high

ANS:B - damping characteristics

Cast iron is known for its unique property of high damping characteristics. Damping refers to the ability of a material to absorb and dissipate energy when subjected to mechanical vibrations or oscillations. In the case of cast iron, its crystalline microstructure and internal friction enable it to effectively dampen vibrations, making it useful in applications where vibration control is important, such as in machinery, engine blocks, and architectural structures. While cast iron can possess other properties like hardness and malleability to some extent, its exceptional damping characteristics set it apart from other materials.