Question

A machine used for compressing raw cotton into bales is ________

Answer 1

1. A hydraulic press works on the principle of Pascal's law.
2. Pressure applied to the smaller piston of the hydraulic press gets transferred to the larger piston through the fluid used in a hydraulic press.
3. Raw cotton is compressed into bales when placed between the two plungers of the hydraulic press.

Hence, a machine used for compressing raw cotton into bales is a hydraulic press.