468) The algebraic difference between the actual size and the corresponding basic size is called actual deviation.

469) The average shear stress in the hollow shaft is smaller than the average shear stress in the solid shaft.

470) The diameter of knuckle pin in a knuckle joint is usually taken as (where d = Diameter of the rod)

471) The design of shafts made of brittle materials is based on

472) A locking device extensively used in automobile industry is a