Final answer:
The OEE of a machine with no setup time can be expressed as 100% because the machine is always available, performs at its maximum capacity, and produces high-quality output.
Step-by-step explanation:
The OEE (Overall Equipment Efficiency) of a machine that has no setup time can be expressed as 100%. This is because the OEE is a measure of the machine's efficiency, which takes into account factors such as availability, performance, and quality. With no setup time, the machine is always available for production, performs at its maximum capacity, and produces high-quality output.