Industrial Maintenance Technician Practice Test

Question: 1 / 400

What is the purpose of a check valve?

Allow bidirectional flow

Control fluid pressure

Prevent backflow

The purpose of a check valve is to prevent backflow in a piping system. This type of valve is designed to allow fluid to flow in only one direction, ensuring that when the fluid attempts to reverse direction, the valve closes automatically. This is crucial in many applications where backflow could lead to contamination, equipment damage, or system inefficiency. By maintaining the directional flow of fluids, check valves help to protect machinery and uphold the integrity of the entire system.

In contrast, other options present functions that are not associated with the primary role of a check valve. Bidirectional flow, control of fluid pressure, and regulation of flow rate are managed by different types of valves or mechanisms specifically designed for those purposes. A check valve's sole function is to maintain unidirectional flow, preventing any reverse movement of the fluid.

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Regulate flow rate

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