Question

Description of piston and connecting rod

Answer 1

Piston : It is a sliding part in internal combustion engine.
Parts of piston and numenclature
Piston Rings
Piston Crown
Top Land
Gudgeon Pin hole
Piston Skirt

Connecting Rod : It's a part who tends to the piston in rotary motion.

Parts
Big end bearing
Small end bearing
Shank