If a body is subjected to stresses in xy plane with stresses of 60N/mm˛ and 80N/mm˛ acting along x and y axes respectively. Also the shear stress acting is 20N/mm˛. Find the minimum normal stress.

If compressive yield stress and tensile yield stress are equivalent, then region of safety from maximum principal stress theory is of which shape?

Maximum Principal Stress Theory is not good for brittle materials.

The region of safety in maximum shear stress theory contains which of the given shape

The total strain energy for a unit cube subjected to three principal stresses is given by?

Distortion energy theory is slightly liberal as compared to maximum shear stress theory.

Mechanical advantage is the ratio of effort to load.

Leverage is the ratio of load arm to effort arm.

The distance between fulcrum and dead weights is 100mm. Dead weights are of 2945.2N. An effort of 294.52N acts on the other hand. Find the distance between the fulcrum and other end of the lever.

A right angled bell-crank is designed to raise a load of 5kN at short arm whose length is 100mm. Longer arm is of length 500mm. Calculate the reaction or force acting on the fulcrum.

A right angled bell-crank is designed to raise a load of 5kN at short arm whose length is 100mm. Also longer arm is of length 500mm. If permissible bearing pressure on pin is 10N/mm˛ and diameter of the 20mm, find the length of the pin.