Gas Fitter Practice Test

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Study for the Gas Fitter Test. Enhance your knowledge with flashcards and multiple-choice questions, each accompanied by hints and explanations. Ace your exam!

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What is the function of a fan control in a gas system?

Shuts the blower off on safety only
Starts the blower when the plenum is up to temperature
Starts and stops the blower
Ensures the burner will not start if overheating occurs

The correct answer is: Starts and stops the blower

The function of a fan control in a gas system is to manage both the starting and stopping of the blower, making it essential for maintaining the proper operation and efficiency of the heating system. When the system is activated, the fan control ensures that the blower starts running to circulate air throughout the space, which provides consistent heating. Once the space is adequately heated, the fan control also regulates when the blower should stop to prevent unnecessary energy consumption and wear. This dual role is crucial for optimizing system performance, enhancing comfort, and maintaining safety. A well-functioning fan control contributes to the overall efficiency of the heating system, ensuring that it operates only when needed and helps prevent overheating conditions. Other options might describe components related to safety measures or operational limits, but the comprehensive functionality of starting and stopping the blower is unique to the fan control.