mr.cris papers

Metallic materials are sub-categorized into:

• Ferrous and Non-ferrous

• Plastic and Ceramic

• Organic and Inorganic

A ferrous material contains:

• Aluminium

• Iron

• Copper

A non-ferrous material contains:

• Iron

• Metals but not iron

• Only plastics

Stress that tends to lengthen a material is:

• Tension

• Compression

• Shear

Stress that tends to shorten a material is:

• Torsion

• Compression

• Bending

Stress tending to twist a material is:

• Shear

• Torsion

• Elastic stress

Maximum stress without permanent deformation is:

• Ultimate stress

• Yield strength

• Elastic limit

Stress where a material fractures is:

• Yield strength

• Ultimate stress

• Elasticity

Ability to recover size/shape after deformation is:

• Elasticity

• Plasticity

• Malleability

Ability to be reshaped but not recover after deformation is:

• Plasticity

• Elasticity

• Ductility