341) In a flange coupling, the bolts are subjected to

342) The radial distance from the top of a tooth to the bottom of a tooth is called clearance

343) A key made from a cylindrical disc having segmental cross-section, is known as

344) The helix angle for double helical gears may be made up to

345) The pressure angle of a cam is the angle between the direction of the follower motion and a normal to the pitch curve.