Depleted uranium ammunition penetrators are encapsulated in a protective device for what purpose?

The encapsulation of depleted uranium ammunition penetrators primarily serves the purpose of protecting operating personnel from contact with heavy metal. Depleted uranium is utilized in ammunition due to its high density and pyrophoric properties, which enhance its penetration capabilities. However, it is also a toxic heavy metal that can pose health risks if there is direct exposure. The protective device ensures that personnel handling or near the ammunition are safeguarded against potential health hazards associated with heavy metal contact, thereby promoting safety during operations.

The other options, while they include aspects related to the characteristics of depleted uranium, do not accurately reflect the primary reason for encapsulation. For example, while the encapsulated design may contribute to penetration capabilities indirectly, its main function is safety rather than enhancement. Additionally, increasing overall ammunition weight is not a goal of encapsulation, as the focus is on maintaining effective performance without adding unnecessary weight. Lastly, encapsulation does not relate to reducing explosive yield, as the primary concern is the handling and safety of the material rather than altering its explosive characteristics. Thus, the purpose of encapsulation aligns predominantly with the need for personnel safety from the toxic properties of depleted uranium.