Question

The malleability is the property of a material by virtue of which a material-

• A. Can be rolled or hammered into thin sheets
• B. Regains its shape and size after the removal of external forces
• C. Retains the deformation produced under load permanently
• D. Can be drawn into wires with the application of a tensile force

Answer 1

Answer:

A. Can be rolled or hammered into thin sheets

Malleability is a material's ability to be hammered or rolled into thin sheets without rupture, increasing with temperature. It's the ability to exhibit large deformation or plastic response when subjected to compressive force. Lead, soft steel, wrought iron, copper, and aluminum are some materials in order of diminishing malleability. Ductility is the ability to be drawn out or elongated before rupture, with percentage elongation or reduction in area before rupture measuring ductility. Brittleness is opposite to ductility, showing little deformation before fracture and failure occurs suddenly.