Name two common fuzing types found in munitions and a basic function for each.

• A. Proximity fuse initiates by distance; mechanical fuse initiates by impact.
• B. Impact fuse initiates on impact; electronic/time fuse initiates after a set delay.
• C. Radio fuse initiates by radio signal; electronic fuse triggers immediately on impact.
• D. Pressure fuse initiates with drop of pressure; time fuse initiates on pressure.

Answer: (B)

Fuzes control when a munition explodes by defining how the initiation happens. Two common types are impact fuzes and time (electronic) fuzes. An impact fuse is designed to detonate when the munition makes physical contact with a target or surface, giving a straightforward, direct-action initiation. A time fuse uses a programmed delay, often via electronic timing, so detonation occurs after a set interval. This allows the weapon to reach the right position or achieve an optimal effect (such as an airburst) before exploding. Together, these illustrate two fundamental approaches: immediate initiation on contact and delayed initiation to time the explosion for maximum impact. Proximity fuzes exist as another widely used type, but they operate on sensing distance rather than contact or a fixed delay.