What is the difference between "travel time" and ASET? [5] Critically review how water affects a compartment fire [10] Explain how a fire can be 'modelled' and what are the limitations of modelling [15] Critically discuss how human behaviour is considered when planning for emergenc evacuation of a burning building. [10] How does the temperature time history of a backdraft differ from any other fire 'type'? [15] What is a Semenov diagram and how does it relate to compartment fires? How is a fuel controlled fire shown on Semenov diagram? [15 marks] How is a vent controlled fire shown on Semenov diagram? Is there any other form of Semenov diagram? Explain the 'idea' of zone modeling [5 marks] [10 marks] How is it possible to calculate the length of a flame without using a CFD simulation? [5 marks] Critically review the different mechanisms of fire suppression. [15 marks]