Answer the following problems in detail.

problem 1) describe in detail that why the face of the pulley is crowned?

problem 2) What do you mean by sprocket for a chain?

problem 3) Name the material that is used for leaf spring?

problem 4) What do you undertsand by interference in involute gears?

problem 5) prepare the name of different forces acting on worm and worm gears.

problem 6) How bearings are categorized?

problem 7) What is the role of connecting rod in an internal combustion engine? describe in detail.

problem 8) describe in detail that why the area of inlet valve port is made larger than area of exhaust valve port?

problem 9) Describe in detail that how are timing gears lubricated?

problem 10) prepare down the material used for crank shaft.