479) When the lubricant is forced between the journal and the bearing by external pressure, the bearing is called hydrostatic lubricated bearing.

480) The buttress threads have low frictional resistance characteristic of the square threads and have the same strength of V-threads.

481) The tension on the slack side of the belt is __________ the tension on the tight side of the belt.

482) The centre to centre distance between two consecutive rivets in a row, is called

483) A bushed pin flexible coupling is used to connect two shafts whose axes intersect at a small angle.