What must be ensured before operating an internal combustion engine in an enclosed space?

Ensuring that the space is adequately ventilated before operating an internal combustion engine in an enclosed area is crucial for safety. Internal combustion engines produce gases such as carbon monoxide, which can accumulate quickly in confined spaces and pose serious risks to health and safety. Adequate ventilation helps to disperse these harmful gases, providing a safer environment for individuals present.

Good ventilation also aids in maintaining a proper air-to-fuel ratio for combustion, which can enhance the efficiency and performance of the engine. By prioritizing ventilation, operators can reduce the likelihood of respiratory issues or other health hazards for those working nearby, making it a fundamental requirement when utilizing such machinery in enclosed environments.