For the beam shown, when bending about the horizontal axis and using the bending stress formula σ=My/I, what value of 'y' would you use if you wanted to calculate:

Exclude units from your answers

The bending stress is linearly distributed through a beam's cross section?

Which of the sections below are considered symmetrical about the X-X axis (horizontal bending axis)?

Multiple answers may be correct.

Based on the known relationship between load-and-shear (w=dV/dx) and shear-and-moment (V=dM/dx) calculate the value of:

Based on the known relationship between shear-and-moment  (V=dM/dx) calculate the value of:

For the following beam at all 5 locations (A-E) indicate which surface of the beam is experiencing tension (stretching).  The red line represents the deflected shape of the beam under the loading shown.

What shape does the following load give to a bending moment diagram?

Based on the known relationship between load and shear, use the SFD diagram below to calculate the actual value of the load P1 (in kN) on the beam.  

Provide your answer to the nearest integer without units. 

Which of the following shows the positive sign convention for the internal actions when we we cut the beam at A?

Based on the known relationship between load-and-shear (w=dV/dx) and shear-and-moment (V=dM/dx) calculate the value of: