Properties of Materials - class test

Maximum stress beyond which a material exhibits permanent deformation is

• Breaking stress

• Proportional limit

• Ultimate strength

• Transverse strength

The total area under the stress-strain curve is used to determine

• Impact strength

• Resilience

• Toughness

• Ultimate strength

Modulus of elasticity of a material is indicative of its

• Ductility

• Malleability

• Plasticity

• Rigidity

Property of the material which describes its resistance to abrasion, is

• Flexural strength

• Hardness

• Modulus of elasticity

• Yield strength

In which of the following hardness test, a steel ball of 1.6 mm diameter is used as indenter?

• Brinell

• Knoop

• Rockwell

• Vickers

If the viscosity of a fluid increases with increase in the strain rate, it is said to be

• Dilatant

• Newtonian

• Plastic

• Pseudoplastic

Which property of dentin enables it to provide support to enamel, preventing enamel fractures during occlusal loading?

• High fatigue strength

• High modulus of elasticity

• High modulus of resilience

• High surface hardness

The 3-point bending test is used to measure

• Flexural strength

• Impact strength

• Ultimate strength

• Yield strength

Two sets of force acting towards each other in a straight line on a body generates

• Compressive stress

• Flexural stress

• Shear stress

• Tensile stress

Which of the following is a type of "usage test"?

• Cytotoxicity test

• Dental pulp irritation test

• Mucous membrane irritation test

• Skin sensitization test