Safety Trained Supervisor in Construction (STSC) Practice Exam

What classification is required for fire extinguishing equipment during welding operations?

1. Limited use fire extinguishers

2. A suitable fire extinguishing equipment

3. Portable fire blankets

4. Emergency water supply

The correct answer is: A suitable fire extinguishing equipment

The correct classification for fire extinguishing equipment during welding operations is a suitable fire extinguishing equipment. Welding poses specific fire hazards due to the high temperatures and sparks generated, which can easily ignite nearby combustible materials. Therefore, it is crucial to have appropriate extinguishing equipment readily available that can effectively address the type of fires that might arise during welding activities. A suitable fire extinguishing equipment typically refers to extinguishers rated for specific classes of fire that could result from welding operations, such as Class A (ordinary combustibles), Class B (flammable liquids), and Class C (electrical fires) when applicable. This ensures that if a fire does occur, the equipment will be effective in suppressing it, thereby enhancing safety on the job site. Other options, such as limited use fire extinguishers, portable fire blankets, and emergency water supply, may not provide the comprehensive safety measure necessary for the variety of fire risks associated with welding. Limited use extinguishers may not be readily available or effective for all types of fire, while fire blankets are generally more suited for personal safety rather than addressing larger fires. Emergency water supply, while useful in certain circumstances, may not be the best choice for all fire types, especially those involving flammable liquids or electrical