In what application would you most likely use a motor that operates at synchronous speed?

A motor that operates at synchronous speed is specifically designed to run at a constant speed, regardless of the load applied to it, as long as that load does not exceed its rated capacity. This characteristic makes synchronous motors particularly well-suited for constant speed applications where precise and stable operation is essential. Examples of such applications include fans, pumps, and conveyor systems, where maintaining a consistent speed is critical for proper functionality and performance.

In contrast, motors used in variable load applications need to adapt their speed based on fluctuating demand, which is not a feature of synchronous motors. Intermittent duty applications involve motors that operate at non-continuous intervals and may not require the constant speed that synchronous motors provide. High torque demand applications typically necessitate different types of motors that can deliver significant torque under various conditions, which may not align with the synchronous motor's capabilities. Therefore, the defining feature of a synchronous motor's constant speed operation makes it the best choice for constant speed applications.