2) Planes of maximum shear stress are always at 45° to principal planes.

True

False

3) The stress analysis performed in Cartesian coordinate and in polar coordinates will result in different principal stresses at a point.

True

False

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

5) In plane strain there are three principal stresses and in plane stress there are two principal stresses.

True

False

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

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

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

9) Two planes passing through a point can be represented by the same point on Mohr’s circle.

True

False

10) Two points on Mohr’s circle can represent the same plane.

True

False

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