Advanced Pneumatics Practice Exam 2025 – The All-in-One Guide to Exam Success!

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What is the primary function of a check valve in a pneumatic circuit?

To increase system pressure.

To allow airflow in one direction only, preventing backflow.

The primary function of a check valve in a pneumatic circuit is to allow airflow in one direction only, preventing backflow. Check valves are designed specifically for this purpose; they open to enable air to flow through the system while automatically closing to block reverse flow. This functionality is crucial in pneumatic applications to maintain system efficiency and prevent issues such as pressure loss or damage to other components that may occur due to backflow. Ensuring that air flows in the intended direction helps to maintain system integrity and performance, making the check valve an essential component in many pneumatic systems.

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To regulate the temperature of the air.

To filter the air supply.

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