G2 Gas Fitter Practice Exam

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Prepare for the G2 Gas Fitter Test. Study using flashcards and multiple choice questions, with hints and detailed explanations for each question. Ensure your success!

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What should be done if a cracked heat exchanger is discovered during inspection?

Replace the heat exchanger immediately
Shut off gas and inform the fuel supplier
Seal the crack with adhesive
Continue operating until further notice

The correct answer is: Shut off gas and inform the fuel supplier

When a cracked heat exchanger is discovered during an inspection, the priority is to ensure safety and prevent any potential hazards that could arise from continued operation. Shutting off the gas supply and informing the fuel supplier is crucial because it immediately mitigates the risk of gas leaks or dangerous emissions. The crack in the heat exchanger could allow exhaust gases, such as carbon monoxide, to enter the living space, posing serious health risks. This procedure is recognized as a standard safety measure in gas fitting practices. It addresses the immediate danger while enabling a comprehensive evaluation of the situation by qualified personnel. After informing the fuel supplier, they can assist in taking the appropriate steps to either replace or repair the heat exchanger in a controlled manner. In contrast, simply sealing the crack with adhesive does not resolve the underlying issue and might lead to further complications, such as gas leaks or boiler malfunction. Continuing operation could endanger the safety of those in the vicinity, and immediate replacement without proper assessment could ignore necessary safety protocols.