8.3 Stress Transformation In questions below answer true or false. Name Email 1. Principal planes are always orthogonal. True False None 2. Planes of maximum shear stress are always at 45° to principal planes. True False None 3. The stress analysis performed in Cartesian coordinate and in polar coordinates will result in different principal stresses at a point. True False None 4. The sum of the normal stresses at a point in an orthogonal coordinate system is independent of the orientation of the coordinate system. True False None 5. In plane strain there are three principal stresses and in plane stress there are two principal stresses. True False None 6. The in-plane maximum shear stress and the maximum shear stress are the same for a point in plane stress if principal stresses 1 and 2 are both compressive. True False None 7. The in-plane maximum shear stress and the maximum shear stress are the same for a point in plane stress if principal stresses 1 and 2 are both tensile True False None 8. The in-plane maximum shear stress and the maximum shear stress are the same for a point in plane stress if principal stress 1 is tensile and principal stress 2 is compressive. True False None 9. Two planes passing through a point can be represented by the same point on Mohr’s circle. True False None 10. Two points on Mohr’s circle can represent the same plane. True False None Do you have any comments or suggestions? Please send them to author@madhuvable.org Time's up