The fit on a hole-shaft system is specified as $$H7$$-$$s6.$$ The type of fit is

If the two principal strains at a point are 1000 $$ \times $$ 10^-6 and -600 $$ \times $$ 10^-6, then the maximum shear strain is

Two bars AB and BC are connected by a frictionless hinge at B. The assembly is supported and loaded as shown in Fig. Draw the shear force and bending moment diagrams for the combined beam AC, clearly labeling the important values. Also indicate your sign convention.

A thin cylinder of $$100$$mm internal diameter and $$5$$mm thickness is subjected to an internal pressure of $$10$$ MPa and a torque of $$2000$$ Nm. Calculate the magnitudes of the principal stresses.