What pneumatic component provides straight line motion?

The component that provides straight line motion in a pneumatic system is the cylinder. Cylinders are designed to convert compressed air into linear mechanical motion. When air is introduced into the cylinder, it pushes a piston, which then extends or retracts to create a straight line movement. This type of motion is essential in various applications, such as in robotic arms, conveyor systems, and machinery automation, where tasks require precise linear movement.

In contrast, the functions of the other listed components differ significantly. A motor typically provides rotary motion, which is a different form of movement entirely. A directional control valve (DCV) is responsible for routing the compressed air to different parts of the system, enabling the control of the flow direction but does not generate motion itself. A muffler serves to reduce noise produced by escaping air from the exhaust of pneumatic systems, playing no role in generating motion. Understanding the unique functions of these components helps clarify why the cylinder is the correct choice for providing straight line motion.