Question

when a beam carries loads, complex stresses build up in the material of the beam. the bending that results from the loading causes some beam fibers to: · carry tension - these are called tensile forces · carry compression - these are called compressive forces · take shear forces. these all occur....
o sequentially
o simultaneously
o alternatively

Explanation:

When a beam is loaded, different types of forces - tensile, compressive, and shear - act on its fibers at the same time due to the complex nature of stress distribution in the beam under load.

Answer:

B. simultaneously