Which consequence results when the ancient Chinese attempted to increase the rate of fire of early gunpowder rockets beyond design limits?

💡 Explanation

In early gunpowder rockets, attempting to burn propellant too quickly leads to a rapid pressure increase. This causes explosive self-disassembly because the hoop stress exceeds casing strength, rather than a gradual material failure or nozzle blockage.

• Which risk increases when a water-powered flour mill's millrace channel erodes near its base?
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