Ignite Success: Ace the 2025 MCC-NH Gas Fitters Exam!

Question: 1 / 400

Where does the piping installation begin according to the installation standards?

At the gas meter

At the appliance connectors

At the outlet of the 2nd stage regulator

The correct answer indicates that piping installation begins at the outlet of the 2nd stage regulator. This is because the 2nd stage regulator is responsible for reducing the pressure of the gas to a usable level before it enters the distribution piping system that leads to appliances. Therefore, the initial point of piping installation should logically be at this outlet, as it is the point at which the gas is delivered at the safe and optimal pressure for operation.

Starting the installation here ensures that all subsequent piping is designed to handle the specific pressure and flow characteristics of the gas being used. This is crucial for safety, efficiency, and compliance with installation standards and regulations. Other points mentioned, like the gas meter or appliance connectors, represent points of connection or transitions rather than the starting point of the distribution system itself.

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At the shutoff valve

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