1. You witness an industrial fire in which an unknown liquid spilled in to a 8.2 feet diameter circular dike. You were told the tank holding the liquid spilled its entire content of 3180 kg in to the dike. The fire started and burned for 30 minutes before consuming all the fuel. If the fire had a heat release rate of 50.5 MW what is the chemical heat of combustion of the fuel?

2. If a fire is growing at a fast growth rate for 155 seconds, what is its heat release rate?

3. If a fire is growing at an ultra-fast growth rate for 190 seconds, what is its heat release rate?

4. If a fire is growing at a medium growth rate for 157 seconds, what is its heat release rate?

5. How long does it take a fire to reach a heat release rate of 1000kW if it is growing at a slow growth rate?