340) When the pulley or other mating piece is required to slide along the shaft, a __________ sunk key is used.

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