Where should blowers and ducting be located when ventilating a confined space?

The correct choice emphasizes the importance of positioning blowers and ducting to ensure safety and effectiveness during ventilation in confined spaces. Locating the blowers upwind and outside of the hot zone helps to prevent the potential spread of contaminants or hazardous gases into the area being worked in. This configuration allows fresh air to be introduced into the space while also reducing the risk of drawing in any harmful substances that might be present.

When blowers are placed upwind, they capitalize on the natural wind direction to enhance airflow into the confined space. This is vital for maintaining a safe working environment, especially in areas where contaminants may accumulate. Outside placement further ensures that the air being supplied is clean and free of any pollutants that could arise from the operations occurring within the hot zone.

Additionally, this arrangement allows for efficient removal of hazardous air, which could be present within the confined space, contributing to better overall ventilation and safety for personnel conducting operations or working in these conditions.