Which among the following types of bevel gear connects two shafts whose axes intersect at right angles?

Which one is a heavy duty key?

Calculate the bending moment of a circular fillet weld made between a rod of 20 millimeters diameter and a plate. The maximum bending stress on the fillet weld is 100 newtons per square millimeter. The size of the weld is 10 millimeters.

The value of the groove angle of the pulley for rope drive is ___________.