Which term describes the ability to permanently deform in all directions without cracking?

Which term describes the ability to permanently deform in all directions without cracking?

• A. Elasticity
• B. Ductility
• C. Malleability
• D. Durability

Answer: (C)

This item tests how a material can be permanently reshaped without cracking when it is worked into a new form. Malleability is the property that lets a metal undergo plastic deformation in all directions under forming forces (like hammering or rolling) without fracturing, so it can be shaped into sheets, foils, or complex forms. Elasticity would mean the material returns to its original shape after removing the load, which is not permanent deformation. Ductility describes the ability to stretch into wires under tension, not necessarily forming in all directions. Durability is about how long a material lasts under use, not its deformability.

This item tests how a material can be permanently reshaped without cracking when it is worked into a new form. Malleability is the property that lets a metal undergo plastic deformation in all directions under forming forces (like hammering or rolling) without fracturing, so it can be shaped into sheets, foils, or complex forms. Elasticity would mean the material returns to its original shape after removing the load, which is not permanent deformation. Ductility describes the ability to stretch into wires under tension, not necessarily forming in all directions. Durability is about how long a material lasts under use, not its deformability.