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Which risk, common in early steamships, increases when superheated steam expansion exceeds pressure tolerances?

A)Propeller shaft torsion failure
B)Boiler explosion catastrophe
C)Rudder cavitation instability
D)Hull plate galvanic corrosion

💡 Explanation

A rapid increase in steam beyond safe pressure causes catastrophic boiler failure, due to exceeding the elasticity of the vessel material. This is 'Boiler explosion', because the pressure exceeds the ultimate tensile strength, rather than other, material-specific corrosion or mechanical torsion.

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