Question

4) In windmill, the function of____is to increase
the rotations per minute​

Answer 1

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The majority of wind turbines consist of three blades mounted to a tower made from tubular steel.A series of gears increase the rotation of the rotor from about 18 revolutions a minute to roughly 1,800 revolutions per minute -- a speed that allows the turbine's generator to produce AC electricity.

Answer 2

In windmill, the function of a gearbox is to increase the rotations per minute​.

Explanation:

The purpose of a gearbox in a windmill is to enhance the rotation per minute. Explanation: In a wind turbine, a gearbox is used to increase the rotational velocity of a low-velocity rotor to a higher-velocity electric generator.

Wind turbine blades rotate at a consistent pace of 15 to 20 rotations per minute.

Box of Gears:

• A gearbox, in the most basic definition, is a set of gears that changes the torque and speed between a driving device such as a motor and a load.
• The gearbox is a mechanical device that increases torque while slowing speed.