CHST Practice Test – Complete Exam Preparation

Question: 1 / 460

Which of the following is true for "relief valves"?

They close automatically when system pressure returns to normal.

Relief valves are designed to automatically close when system pressure returns to normal after relieving excess pressure. Their primary function is to maintain a safe operating pressure within a system by allowing excess pressure to escape, thus preventing potential damage or failure. Once the sensed pressure drops back to the normal operating range, the valve will automatically close, ensuring that the system can operate securely without requiring manual intervention.

The mechanism of operation is critical for safety in various applications, including pressure vessels and piping systems. Some other options, while they may pertain to different types of valves or operational procedures, do not apply to the fundamental operation of relief valves in ensuring system safety and efficiency.

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They require manual intervention to close.

They should be adjusted regularly by operators.

They have a set pressure limit beyond which they do not operate.

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