combined bending stress

What is the equation that describes the relationship between the moment of resistance of a beam and the bending stress produced by a bending moment?

• My/I = σ/y = E/R

• My/I = σmax

• σmax = Mmax*c/I

• Mmax = σmax*c/I

A simply supported beam of span L is subjected to a uniformly distributed load w per unit length. What is the maximum bending moment at the mid-span?

• wL^2/8

• wL/2

• wL^2/12

• wL^2/16

Which of the following is the equation for the bending stress in a beam subjected to a bending moment M and having a moment of inertia I?

• σ = My/I

• σ = My

• σ = M/I

• σ = M*y/I

What is the distance from the neutral axis to the top or bottom surface of a beam called?

• Moment of inertia

• Section modulus

• Radius of gyration

• Lever arm

A beam is subjected to a maximum bending moment Mmax and has a rectangular cross-section of width b and depth d. What is the moment of inertia I of the beam?

• I = bd^3/12

• I = bd^3/6

• I = b^3d/12

• I = b^3d/6