Project #16020 - fire assignment

 

 

 

 

 

 

1.  In scientific terms – define fire. (4 points)

 

 

 

 

 

2.  Compare and contrast the fire triangle and the fire tetrahedron. (4 points)

 

 

 

 

3. Specifically, in scientific terms, describe flames? (4 points)

 

 

 

 

 

4.  List four fuels that can be involved in Class A fires. (3 points)

 

 

 

5.  List two fuels that can be involved in Class B fires. (3 points)

 

 

 

 

 

6.  List two fuels that can be involved in Class D fires. (3 points)

 

 

 

 

 

7.  What differentiates a Class K fire from a Class B fire? (3 points)

 

 

 

 

 

 

 

8.  A fuel  has heat of combustion equal to 30 kJ / g.  How much energy is released when 5 kilograms are oxidized? (3 points)

 

 

 

 

 

 

 

9.  Assuming the fuel in the above example is reacted in 10 minutes, what is the average heat release rate for the fire? (3 points)

 

 

 

 

 

 

10.  Explain how a fuel’s heat of gasification (latent heat of vaporization) affects heat release rate during combustion. (4 points)

 

 

 

 

11.  Describe the science behind correlating changes in oxygen concentration to determine heat release rate? (4 points)

 

 

 

12. What is the heat release rate of a flame measuring five feet in height (assuming the flame is in the center of a room)? (3 points)

 

 

 

 

 

13.  What flame height would result from a 3 megawatt fire located in the corner of a compartment? (3 points)

 

 

 

 

 

14.  Considering the fire in Question 13 occurs in a compartment having an 8 foot ceiling, describe flame movement during peak heat release rate. (3 points)

 

 

 

 

 

15. Acetone is released into the diked area surrounding its storage tank.  The dike measures 40 feet long by 30 feet wide.  What heat is the HRR should it catch on fire? (3 points)

 

 

 

 

 

 

 

 

 

 

 

 

Subject Science
Due By (Pacific Time) 11/03/2013 11:05 pm
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