Gas Fitter Practice Test

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On a regulator, which element senses (measures) outlet pressure?

  1. Restricting element

  2. Measuring element

  3. Loading element

  4. Spring element

The correct answer is: Measuring element

The measuring element is critical in a regulator as it directly senses and measures the outlet pressure of the gas system. This element is responsible for providing accurate feedback about the pressure conditions downstream of the regulator. When the outlet pressure reaches a specified level, the measuring element signals the regulator to adjust the flow of gas to maintain consistent pressure. In contrast, other elements have different roles: the restricting element controls the flow by creating a pressure drop, the loading element typically applies a force to offset the pressure in the system and helps to maintain stability, while the spring element assists in regulating pressure by providing resistance to the measuring element's movement. Understanding these functions is essential for grasping how pressure regulation works within a gas delivery system.

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