Gas Fitter Practice Test

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Prepare for your gas fitter exam with a comprehensive quiz that includes flashcards, multiple choice questions, insights, and detailed explanations. Boost your chances of success and ensure you're exam-ready!

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What is the maximum recommended voltage for millivolt systems?

  1. 10 V

  2. 20 V

  3. 30 V

  4. 50 V

The correct answer is: 30 V

In gas fitting applications involving millivolt systems, the maximum recommended voltage is typically 30 volts. Millivolt systems operate at low voltage and are commonly used in gas-fired appliances such as water heaters and pilot systems, where safety and minimal electrical interference are paramount. Operating at or below the 30-volt threshold helps ensure that the systems can function effectively without posing significant risks of electrical shock or interference with the gas control components. Higher voltage can lead to increased risks, such as arcing, which can compromise the safety and efficiency of the appliance. Therefore, maintaining the voltage within the recommended range is crucial for optimal performance and safety.

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