Final answer:
Stepper valves are valves that use motors to move in small increments, allowing for precise control and positioning.
Step-by-step explanation:
Valves that use motors that move in tiny increments are called stepper valves.
These valves are often used in precision control systems where small and precise movements are required. Unlike continuous valves, which can move freely within a range, stepper valves move in discrete steps, allowing for accurate positioning. Stepper valves are commonly used in applications such as robotics, 3D printers, and medical devices.