OSHA 30 Hour Construction Program Practice Test

What makes flammable materials more hazardous than combustibles?

1. They are more abundant

2. They ignite at lower temperatures

3. They are easier to store

4. They burn for a longer duration

The correct answer is: They ignite at lower temperatures

Flammable materials are considered more hazardous than combustibles primarily because they ignite at lower temperatures. This means that flammable materials can catch fire more easily and quickly, creating a greater risk of fire incidents in environments where they are present. The lower flash point of flammable materials allows them to emit vapors that can mix with air and form explosive mixtures, even at relatively mild temperatures. In contrast, combustibles require higher temperatures to ignite, which can provide a slightly larger margin for safety in working environments. This distinction is crucial for safety protocols and practices, as it emphasizes the need for stringent control measures when working with flammable substances. The focus on temperatures and ignition points is a fundamental aspect of hazard recognition and risk assessment in the workplace.