G2 Gas Fitter Practice Exam

At what percentage can we safely over fire an appliance?

1. 10%

2. 5%

3. 0%

4. 15%

The correct answer is: 0%

Over-firing an appliance refers to operating it at a higher input than the equipment is designed to handle. Allowing an appliance to operate at an over-fired rate can lead to safety hazards such as excessive heat buildup, potential damage to the appliance, or unsafe operating conditions, including the risk of fire or gas leaks. Maintaining the appliance at its rated capacity ensures safe and efficient operation. Operating at a percentage above the appliance's design specifications can compromise these safety measures. Therefore, the safest practice is to avoid over-firing altogether, which aligns with the principle of maintaining equipment within the manufacturer's specified limits. This ensures the longevity of the appliance and protects against potential safety risks.