What is one common application for single-phase motors?

Single-phase motors are widely used in residential applications due to their simplicity and efficiency in lower power settings. Common examples include fans, small water pumps, and other household devices that require moderate power levels without the need for three-phase electrical supply. These motors operate effectively on the single-phase power typically available in homes, allowing them to fulfill the needs of everyday appliances and provide reliable performance for tasks like air circulation and water movement.

The other options involve applications requiring higher power demands or more complex motor designs, making them less suitable for single-phase motors. Heavy industrial machinery and high-speed transport systems usually depend on three-phase motors for their enhanced power delivery and operational efficiency. Similarly, automotive powertrains require advanced systems for performance and efficiency, which are not met by the capabilities of single-phase motors. Thus, the choice of residential appliances aligns well with the inherent characteristics of single-phase motors.