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Gas Appliance Installation and Service Flashcards

6 cards from real RMGA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Gas Appliance Installation and Service flashcards as text

  1. What is the purpose of a gas appliance's manual shutoff valve located within 6 feet of the appliance?

    Answer: To provide a means for the user or technician to quickly shut off gas to the appliance for service or emergency

    A manual shutoff valve accessible near the appliance allows quick gas shutoff for maintenance, appliance replacement, or emergency response without shutting off service to the entire building.

  2. What is 'standby pilot consumption' and why is it relevant to gas appliance efficiency?

    Answer: The continuous gas consumption of a standing pilot light that burns whether or not the appliance is in use

    A standing pilot flame burns continuously, consuming gas even when the appliance is not in use, which reduces overall appliance efficiency compared to electronic ignition.

  3. What is the function of a pressure regulator built into a gas appliance (appliance regulator)?

    Answer: To reduce the supply pressure to the specific pressure required by the appliance burner system

    An appliance pressure regulator reduces the supply pressure to the precise level required by the appliance's burner design for safe and efficient operation.

  4. What does 'input rating' of a gas appliance mean?

    Answer: The rate at which the appliance consumes gas, expressed in BTU per hour

    The input rating specifies the rate of gas consumption in BTU/hr, which determines the required gas supply capacity and pipe sizing for the appliance.

  5. What is the purpose of a vent damper on a gas appliance?

    Answer: To close the flue when the appliance is not firing, reducing standby heat loss up the chimney

    A vent damper closes when the appliance is in standby, preventing warm building air from being drawn up the flue and reducing heating system standby losses.

  6. What type of flexible gas appliance connector is prohibited for use with a gas clothes dryer?

    Answer: Listed polymer (plastic) connector

    Polymer connectors are prohibited for dryer connections in most codes because dryers generate heat and vibration that can cause plastic connectors to crack or fail over time.

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