Gas Fitter Practice Test

When too many lava rocks are placed in the rack of a barbecue, one consequence is that the burner may burn out prematurely. This happens because an excessive amount of lava rocks can obstruct the flow of heat and gas, which leads to the burner working harder to produce heat. Over time, this excessive strain can lead to damage or burnout of the burner itself, ruining its functionality.

Additionally, while the food may encounter changes in cooking times due to heat dispersion, the primary concern with insufficient airflow and gas flow arises directly from overcrowding the rack with rocks. The cooking efficiency relies on proper air and gas mixture, which can be compromised, resulting in the burner overheating and failing.