Question

When should you not smoke, weld, or run an engine?

1) In a closed room
2) In a well-ventilated area
3) In the presence of flammable materials
4) In the presence of children

Answer 1

Smoking, welding, or running engines should not be done in closed rooms, near flammable materials, or where children are present due to health and safety risks.

Step-by-step explanation:

When to Avoid Smoking, Welding, or Running an Engine

Smoking, welding, and running engines can release harmful substances into the air, such as carbon monoxide and secondhand smoke. These activities should not be done in situations that pose increased risks to health and safety. The primary circumstances where these activities should be strictly avoided are:

1. In a closed room where ventilation is inadequate. Lack of proper air circulation can lead to a buildup of toxic gases and hazardous fumes which are detrimental to health.
2. In the presence of flammable materials, as sparks and open flames can ignite these materials causing fires.
3. In areas where children are present due to their higher vulnerability to the adverse health effects of toxic substances, such as secondhand smoke and carbon monoxide.

It is important to ensure that there is adequate ventilation, that all safety precautions are taken, and to follow manufacturers' instructions when using products that can release pollutants.