Which of the following is classified as a type of physical hazard?

Compressed gas is classified as a type of physical hazard because it can pose significant risks due to its pressurized state. The energy stored in compressed gases can potentially lead to explosive decompression if a cylinder is damaged or improperly handled. This can result in flying debris or the cylinder itself becoming a projectile, posing a risk to workers and the surrounding environment. Proper storage, handling, and use of compressed gas are crucial to minimizing the risk of accidents or injuries in a manufacturing setting.

While flammable liquids, corrosive materials, and biological agents also present hazards, they are categorized differently. Flammable liquids are primarily considered chemical hazards due to their ability to ignite and cause fires. Corrosive materials fall under the category of chemical hazards as well, due to their ability to damage living tissue or materials upon contact. Biological agents are recognized as biological hazards, stemming from organisms that can cause illness or disease. Compressed gas stands out as a physical hazard due to the mechanical energy and risks associated with its storage and use.