Putting the belt on the larger sheave will do what to drill speed?

When putting the belt on the larger sheave, it decreases the drill speed. This principle is rooted in the mechanics of pulleys and belts. The size of the sheave plays a crucial role in determining the rotational speed of the connected equipment.

In a pulley system, if the belt is placed on a larger sheave, the circumference of that sheave is greater compared to a smaller one. As a result, for each full rotation of the larger sheave, the belt moves a longer distance. Consequently, this translates into a lower rotational speed of the drill compared to when it's mounted on a smaller sheave. Essentially, a larger sheave reduces the output speed of the drill because it requires more belt movement to achieve the same revolution.

Understanding this relationship between pulley sizes and rotational speed is fundamental in machine operation, ensuring that pipefitters can effectively control the speed necessary for various tasks.