Q1: Metal shots used in shot blasting are made of

ANS:B - steel

Metal shots used in shot blasting are typically made of steel. Steel shots are widely used in shot blasting processes due to their durability, hardness, and ability to effectively remove contaminants, rust, scale, and other surface imperfections from metal surfaces. Additionally, steel shots can be recycled and reused multiple times, making them a cost-effective abrasive material for shot blasting applications.