Did pressurised boiler rooms contribute to armoured cruisers sinking quickly after torpedo hits?
Short answerThey could; forced-draft boiler rooms were effectively pressurised, making this a genuine vulnerability when the hull was breached.
NotesForced-draft boiler rooms were effectively pressurised during operation, so overpressure was a real vulnerability when a torpedo opened the space to the sea. Machinery arrangement and ventilation pressure could therefore compound underwater damage. This was one contributing factor rather than a complete explanation for every sinking.