Flywheel is an important part of a steam engine because it :

Options

A. accelerates the speed of the engine
B. helps the engine in keeping the speed uniform
C. decreases the moment of inertia
D. gives strength to the engine

Answer

B

Explanation

A flywheel is a rotating mechanical device that is used to store rotational energy. Flywheels have a significant moment of inertia and thus resist changes in rotational speed, enabling the engine to run at a constant, uniform motion. In the Industrial Revolution, James Watt contributed to the development of the flywheel in the steam engine.