Power screws are used to convert rotary motion into translatory motion.

The static tooth load should be __________ the dynamic load.

The product of the diametral pitch and module is equal to one.

When an open coiled helical compression spring is subjected to an axial compressive load, the maximum shear stress induced in the wire is (where D = Mean diameter of the spring coil, d = Diameter of the spring wire, K = Wahl's stress factor, and W = Axial compressive load on the spring)

In a transverse fillet welded joint, the size of weld is __________ the throat of weld.