PEC EPE Exam Solid Mechanics MCQ Questions

PEC EPE Exam Solid Mechanics MCQ Questions

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    The modulus of elasticity is a measure of a material’s:

    a) Strength

    b) Stiffness

    c) Toughness

    d) Ductility

    Answer: b) Stiffness

    The stress that causes a material to deform permanently is called:

    a) Elastic stress

    b) Yield stress

    c) Ultimate stress

    d) Residual stress

    Answer: b) Yield stress

    The ability of a material to absorb energy without fracture is known as:

    a) Elasticity

    b) Toughness

    c) Ductility

    d) Hardness

    Answer: b) Toughness

    The change in length per unit original length in a material subjected to tensile or compressive stress is known as:

    a) Shear strain

    b) Poisson’s ratio

    c) Young’s modulus

    d) Linear strain

    Answer: d) Linear strain

    Hooke’s Law is applicable to which type of material behavior?

    a) Brittle

    b) Plastic

    c) Non-linear

    d) Elastic

    Answer: d) Elastic

    The ratio of lateral strain to the longitudinal strain within the elastic limit is known as:

    a) Modulus of elasticity

    b) Poisson’s ratio

    c) Bulk modulus

    d) Shear modulus

    Answer: b) Poisson’s ratio

    The phenomenon of a material experiencing a decrease in volume under compression is called:

    a) Tensile stress

    b) Compressive stress

    c) Poisson’s effect

    d) Shear strain

    Answer: c) Poisson’s effect

    The maximum stress that a material can withstand without fracture is called:

    a) Ultimate stress

    b) Proportional limit

    c) Yield stress

    d) Breaking stress

    Answer: a) Ultimate stress

    The maximum stress a material can withstand without permanent deformation is called:

    a) Ultimate stress

    b) Proportional limit

    c) Yield stress

    d) Breaking stress

    Answer: c) Yield stress

    The internal resisting force per unit area developed within a material due to an applied load is called:

    a) Strain

    b) Stress

    c) Deformation

    d) Modulus of elasticity

    Answer: b) Stress

    The ratio of stress to strain within the elastic limit is known as:

    a) Modulus of elasticity

    b) Poisson’s ratio

    c) Bulk modulus

    d) Shear modulus

    Answer: a) Modulus of elasticity

    The region of a stress-strain curve where the material undergoes non-reversible deformation is known as the:

    a) Elastic region

    b) Plastic region

    c) Yield point

    d) Fracture point

    Answer: b) Plastic region

    The strain energy stored per unit volume in a material within the elastic limit is known as:

    a) Resilience

    b) Toughness

    c) Modulus of elasticity

    d) Strain energy density

    Answer: d) Strain energy density

    The maximum stress a material can withstand without any permanent deformation is called:

    a) Ultimate stress

    b) Yield stress

    c) Breaking stress

    d) Proportional limit

    Answer: d) Proportional limit

    The point on a stress-strain curve where the material starts to yield and undergo permanent deformation is called the:

    a) Elastic limit

    b) Proportional limit

    c) Yield point

    d) Breaking point

    Answer: c) Yield point

    The region of a stress-strain curve where the material undergoes reversible deformation is known as the:

    a) Elastic region

    b) Plastic region

    c) Yield point

    d) Fracture point

    Answer: a) Elastic region

    The ratio of lateral stress to longitudinal stress within the elastic limit is known as:

    a) Poisson’s ratio

    b) Young’s modulus

    c) Bulk modulus

    d) Shear modulus

    Answer: a) Poisson’s ratio

    The measure of a material’s ability to resist fracture when subjected to a sudden impact is known as:

    a) Hardness

    b) Toughness

    c) Ductility

    d) Resilience

    Answer: d) Resilience

    The ability of a material to withstand deformation under tensile stress without fracturing is known as:

    a) Elasticity

    b) Toughness

    c) Ductility

    d) Hardness

    Answer: c) Ductility

    The ratio of lateral strain to the longitudinal strain within the elastic limit is represented by the Greek letter:

    a) α

    b) β

    c) γ

    d) ν

    Answer: d) ν (nu)