Friday, December 24, 2010

backdraft

A backdraft is a situation which can occur when a fire is starved of oxygen; consequently combustion ceases but the fuel gases and smoke remain at high temperature. If oxygen is re-introduced to the fire, eg. by opening a door to a closed room, combustion can restart often resulting in an explosive effect as the gases heat and expand (see also flashover).

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talk nineteen to the dozen

  to speak rapidly and without stopping