Strength of Materials MCQs (Part-1)

What is the unit of stress?

A N/m
B N/m²
C N/m³
D N

Which law states that stress is directly proportional to strain within the elastic limit?

A Newton’s Law
B Hooke’s Law
C Pascal’s Law
D Bernoulli’s Law

What is the ratio of lateral strain to axial strain called?

A Modulus of Elasticity
B Bulk Modulus
C Shear Modulus
D Poisson’s Ratio

Which of the following materials exhibits plasticity?

A Glass
B Rubber
C Steel
D Wood

What is the point called where a material changes from elastic to plastic behavior?

A Fracture Point
B Yield Point
C Ultimate Point
D Breaking Point

What is the term for the ability of a material to absorb energy before fracture?

A Toughness
B Hardness
C Stiffness
D Ductility

Which of the following is a measure of material stiffness?

A Modulus of Elasticity
B Poisson’s Ratio
C Shear Modulus
D Bulk Modulus

What type of stress is developed due to axial loading?

A Shear Stress
B Tensile Stress
C Compressive Stress
D Both b and c

Which theory is used to predict the failure of ductile materials?

A Maximum Shear Stress Theory
B Maximum Normal Stress Theory
C Maximum Strain Theory
D Maximum Energy Theory

What is the term for the deformation of a material under constant stress over time?

A Fatigue
B Creep
C Fracture
D Hardening

What is the shape of the shear force diagram for a uniformly distributed load on a simply supported beam?

A Linear
B Parabolic
C Rectangular
D Triangular

Which of the following is NOT a type of beam support?

A Fixed Support
B Hinged Support
C Floating Support
D Roller Support

What is the term for the stress caused by a sudden change in the cross-section of a material?

A Residual Stress
B Thermal Stress
C Stress Concentration
D Shear Stress

What is the term for the energy stored in a material due to deformation?

A Kinetic Energy
B Thermal Energy
C Potential Energy
D Strain Energy

Which of the following is a measure of a material’s resistance to indentation?

A Toughness
B Hardness
C Stiffness
D Ductility