Quiz on Strength of Materials

Stress is defined as:

• Force per unit area

• Deformation per unit length

• Load per unit length

• Strain energy per unit volume

The ratio of stress to strain in the elastic region is called:

• Modulus of Rigidity

• Bulk Modulus

• Young's Modulus

• Poisson's Ratio

Strain energy is stored in a material when it is:

• Loaded beyond the elastic limit

• Under uniform pressure

• Within the elastic limit

• In a plastic state

In simple tension, the volumetric strain is given by:

• εx+εy+εz

• 1+2μ

• σ/E(1−2μ)

• None of these

If a material is loaded such that the strain is constant in all directions, the stress condition is:

• Uniaxial stress

• Pure shear

• Hydrostatic stress

• Plane stress

Which material property measures a material's ability to deform plastically?

• Elastic Modulus

• Ductility

• Toughness

• Hardness

Which property is tested in a torsion test?

• Modulus of Rigidity

• Bulk Modulus

• Young's Modulus

• Poisson's Ratio

Hooke's Law is valid up to the:

• Yield point

• Elastic limit

• Fracture point

• Proportional limit

The SI unit of modulus of rigidity is:

• Pascal (Pa)

• Newton (N)

• Joule (J)

• Watt (W)

Which of the following is a measure of energy absorption of a material before fracture?

• Toughness

• Elasticity

• Stiffness

• Resilience