North Carolina Building Contractor License Practice Exam

What is the minimum distance oxygen cylinders and fuel cylinders must be stored from combustible materials?

1. 5 feet

2. 10 feet

3. 15 feet

4. 20 feet

The correct answer is: 20 feet

The minimum distance that oxygen cylinders and fuel cylinders must be stored from combustible materials is set at 20 feet. This regulation is designed to mitigate the risks associated with fire and explosions that can occur when flammable gases come into contact with combustible materials. Oxygen supports combustion, meaning it can cause materials that normally wouldn’t burn to ignite more easily. Similarly, fuel cylinders contain gases that are flammable and can exacerbate any potential fire hazards. By maintaining a distance of 20 feet, safety measures are reinforced, helping to prevent ignition sources from coming into contact with flammable materials, thereby safeguarding both personnel and property. In practice, storage areas for these cylinders are typically organized to ensure that such distance is maintained, and personnel are trained to recognize and implement these safety protocols. Understanding this requirement is crucial for anyone involved in construction or related fields, as adhering to safety guidelines is essential for compliance with regulations and overall site safety.