What is the flame height of a 1200 kW fire along a wall?
Question 1:
What is the flame height of a 1200 kW fire along a wall?
3.9 m
39 m
.39 m
390 m
Question 2:
Which test is NOT based on oxygen consumption?
Cone calorimeter
Intermediate-scale calorimeter (ICAL)
Open air calorimeter
Oxygen bomb calorimeter
Question 3:
To calculate the heat release rate by multiplying the burning flux by the fuel surface area and the heat of combustion, which formula would you use?
Q with dot on top equal a subscript F increment H subscript c stack m double apostrophe with dot on top open parentheses 1 minus e to the power of minus k italic beta D end exponent close parentheses.
Q with dot on top equal fraction numerator open parentheses 79.18 left parenthesis H subscript f right parenthesis to the power of 5 divided by 2 end exponent close parentheses over denominator k end fraction
Q with dot on top equal a subscript F increment H subscript c stack m double apostrophe with dot on top.
q With dot on top double apostrophe equal fraction numerator X subscript r Q with dot on top over denominator 4 italic pi R to the power of 2 end fraction
Question 4:
To calculate the regression rate, or volumetric loss of liquid per surface area, of a pool fire, which of the following formulas would you use?
Q with dot on top equal a subscript F increment H subscript c m with dot on top double apostrophe open parentheses 1 minus e to the power of minus k italic beta D end exponent close parentheses
Q with dot on top equal fraction numerator open parentheses 79.18 left parenthesis H subscript f right parenthesis to the power of 5 divided by 2 end exponent close parentheses over denominator k end fraction
Q with dot on top equal a subscript F increment H subscript c stack m double apostrophe with dot on top
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Question 5
What is the heat release rate of a flame reported to be 2 m high, in the center of a room?
447.9 kW
44.79 kW
4.479 kW
.4479 kW
Question 6
What is the formula to determine the heat release rate from a known flame height?
Q with dot on top equal a subscript F increment H subscript c m with dot on top to the power of double apostrophe (1 minus e to the power of minus k italic beta D end exponent).
Q with dot on top equal fraction numerator left parenthesis 79.18 space left parenthesis H subscript f right parenthesis to the power of 5 divided by 2 end exponent right parenthesis over denominator k end fraction
Q with dot on top equal space a left parenthesis t minus t subscript o right parenthesis to the power of 2
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Question 7
The burning rate of a pool fire will continue to increase until it reaches what point?
Asymptotic burning rate (m with dot on top subscript infinity superscript double apostrophe)
Maximum pool threshold (m with dot on top subscript infinity superscript double apostrophe)
Maximum theoretical diameter (m with dot on top subscript infinity superscript double apostrophe)
Asymptomatic burning rate (m with dot on top subscript infinity superscript double apostrophe)
Question 8
How much energy is liberated per gram of oxygen in combustion?
13.1 kJ
1.31 kJ
.131 kJ
131. kJ
Question 9
Which of the following devices is used for determination of HRR for small samples?
Cone calorimeter
Intermediate-scale calorimeter (ICAL)
Open air calorimeter
Industrial calorimeter
Question 10
Which of the following calorimeters would be appropriate for rack storage tests?
Cone calorimeter.
Intermediate-scale calorimeter (ICAL).
Industrial calorimeter.
Oxygen bomb calorimeter.
Question 11
What is a fire growth curve, and what are the different methods of identifying fire growth curves?
Your response should be at least 75 words in length.
Why are there so many different flame height correlations? What is a correlation, and why are they used for fire problems?
Your response should be at least 75 words in length.
Question 13
A 100 m3 tank open at the top has a 10 meter diameter. The tank is filled with gasoline that ignites. How long will the fire last?
Your answer should show your calculations and your answer must include the proper units
Question 14
What is heat release rate of a 2.5 meter high fire located (a) in a corner of a room and (b) in the middle of the room? Can you explain why the heat release rate of the fire in the corner is different than the heat release rate of the fire in the middle of the room?
Your answer should show your calculations and your answer must include the proper units.