Blast Through the AMMO-63 Army Explosive Safety Exam 2025 – Ignite Your Knowledge!

The sensitivity to detonation within the explosive train is primarily found in the fuze and primer. These components are crucial because they are specifically designed to initiate the explosive reaction. The fuze acts as a trigger that controls the timing of the detonation, while the primer serves as the initial source of energy that ignites the main charge of the explosive.

In an explosive system, the interactions between the fuze and primer are critical for ensuring precise and reliable activation of the explosive material. The design and materials used in these components are selected to maximize sensitivity and reliability under various conditions. Consequently, any impact, friction, or heat that these parts experience can more easily lead to detonation compared to other components in the explosive train.

Understanding the roles of the fuze and primer highlights why they are considered the most sensitive parts of the explosive assembly, ensuring that safety measures are effectively implemented during handling and operation.