Red Seal Gasfitter — Class B Practice Exam

What action should be avoided when a gas leak is suspected?

1. Evacuating the premises

2. Turning off electrical switches

3. Using open flames

4. Contacting emergency services

The correct answer is: Using open flames

When a gas leak is suspected, using open flames should be strictly avoided. The presence of gas creates a highly flammable environment, and introducing an open flame can result in an explosion or fire. This is why safety protocols emphasize the importance of preventing any sources of ignition when a gas leak is detected. While evacuating the premises is a necessary safety measure, and turning off electrical switches can help mitigate the risk by eliminating potential ignition sources, these actions can only be taken safely when they do not involve any risk of igniting the gas. Contacting emergency services is crucial as they can provide the necessary assistance to handle the situation safely. Therefore, the correct action to avoid is the use of open flames when a gas leak is suspected.