Question 2221 Deck Safety

The correct answer is C) Shear. When two forces act in opposite directions and along parallel lines, the resulting stress is called shear stress. Shear stress occurs when two surfaces or layers of a material slide in opposite directions relative to each other, creating a perpendicular force that tries to "slice" or "shear" the material. This type of stress is often encountered in structural design and analysis. The other options are incorrect because: A) Strain is the deformation of a material under stress, not a type of stress. B) Compression is a type of stress where a material is squeezed or pushed together. D) Tensile stress is a type of stress where a material is pulled or stretched apart.