An example of using one limit switch to control multiple cylinders is....

• A. Crimping Machine
• B. Hydraulic Press
• C. Conveyor Line
• D. Robotic Arm

Answer: (B)

The idea being tested is using a single sensing point to coordinate multiple actuators that share a common motion path. When several cylinders must move together in one cycle, one limit switch can provide the end-of-stroke signal for all of them. In a hydraulic press, the main ram and any companion cylinders can be tied to the same stroke, so when that limit switch is actuated, the hydraulic system knows the cycle is complete and can stop or advance as needed. This simplifies wiring and ensures synchronized action, since all cylinders respond to the same position cue.

Other machines typically need separate sensing for different actions or zones. A crimping setup may require individual feedback for each jaw or station; a conveyor line often uses multiple sensors to manage item flow and stop points; a robotic arm needs position sensing at multiple joints for precise movements. None of these rely on one limit switch providing the end-of-stroke signal for all actuators in the same way a hydraulic press can, which is why a hydraulic press is the best example.