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 is the minimum clearance required from combustible materials for a central furnace on the sides?

2 inches
6 inches
12 inches
18 inches

The correct answer is: 6 inches

The minimum clearance required from combustible materials for a central furnace on the sides is 6 inches. This requirement is in place to ensure safety and prevent the risk of fire that could arise from heat generated by the furnace. Combustible materials can easily ignite if exposed to excessive heat; therefore, maintaining a clearance of at least 6 inches provides a buffer zone that helps to dissipate heat and protects surrounding materials. While other clearances may be specified for different types of appliances or in particular installations, the standard for a central furnace is specifically set at this measurement to balance safety and practicality in residential and commercial settings. Thus, this requirement is rooted in both building codes and manufacturer specifications, which are designed to minimize hazards associated with gas appliances.