California Blasters Practice Test 2026 – Your Comprehensive All-in-One Guide to Success!

In explosives, velocity refers to how fast the reaction propagates. Low-velocity materials burn or deflagrate rather than detonate, producing pressure more slowly. Black powder is the classic example of a low-velocity explosive because it burns and releases gases without forming a fast detonation wave. The others involve rapid detonation (dynamite and nitroglycerin) or are propellants designed to burn to push a projectile (smokeless powder), not to produce a blasting detonation. So black powder fits the low-velocity category best.