Black powder is extremely sensitive to which factors?

Black powder is extremely sensitive to which factors?

• A. Fire
• B. Friction
• C. Both fire and friction
• D. Water

Answer: (C)

Ignition sensitivity of black powder depends on heat input from active sources. It will ignite when exposed to fire, because a flame or sparks raise the temperature of the powder quickly, causing it to burn rapidly and generate gas. Friction also matters because rubbing grains or knocking the powder against surfaces can create hot spots or sparks that start the burn. Water, by contrast, dampens and cools the mixture, making ignition harder, so it isn’t a factor that increases sensitivity. Since both heat from fire and heat produced by friction can trigger ignition, the powder is extremely sensitive to both.

Ignition sensitivity of black powder depends on heat input from active sources. It will ignite when exposed to fire, because a flame or sparks raise the temperature of the powder quickly, causing it to burn rapidly and generate gas. Friction also matters because rubbing grains or knocking the powder against surfaces can create hot spots or sparks that start the burn. Water, by contrast, dampens and cools the mixture, making ignition harder, so it isn’t a factor that increases sensitivity. Since both heat from fire and heat produced by friction can trigger ignition, the powder is extremely sensitive to both.