Which of the following types of steam could pose a risk if not properly managed in equipment?

Flash steam can pose significant risks if not properly managed in equipment due to its rapid transformation from condensed water to steam when pressure decreases. This can occur in systems where there are pressure drops, such as in piping or when transferring between different equipment. The sudden generation of flash steam can lead to dangerous pressure surges or explosive releases if the system is not designed to handle such changes, which can result in equipment failure or safety hazards to personnel near the system.

In contrast, dry saturated steam and superheated steam are generally considered safer when properly maintained within their operating conditions as their states are predictable in terms of temperature and pressure. Condensed steam, on the other hand, is a liquid form that typically does not pose the same level of inherent risk as it is not in a pressurized gaseous state.

Therefore, understanding and managing the risks associated with flash steam is crucial for ensuring the safety and reliability of steam systems.