23. What are the different types of fits?
There are mainly three groups in fits: First is a clearance fit that allows for loose mating where free movement is necessary. This is used where the elements are required to be able to slide in swiftly without any obstruction. Second is the Interference fit which is relatively tighter than a clearance fit. It requires some amount of force to join two components. The third one is the transition fit which falls between clearance fit and interference fit. These are used when accurate alignment is essential, and mating parts need great precision while joining.
