10 Questions
Which element is considered an impurity in a fuel, even though it is combustible?
Sulfur
What is the equation for the incomplete combustion of sulfur?
2S + O2 -> SO2 + S
Why is the formation of free sulfur undesirable in combustion?
It represents a waste of fuel
Which elements in the fuel combine with oxygen during combustion to form carbon dioxide and water vapor?
Carbon
What is the main combustible element in fuels?
Carbon
What is the equation for the combustion of propane (C3H8)?
C3H8 + 3O2 -> 3CO2 + 4H2O
Which of the following is a condition required for complete combustion to occur?
Sufficient air must be admitted to ensure all combustibles are burned.
What is the equation for the complete combustion of carbon?
C + O2 -> CO2
What is the equation for the incomplete combustion of hydrogen?
2H2 + 1/2O2 -> H2O + H2
What is the main consequence of incomplete combustion in a boiler?
Reduction in efficiency
Test your knowledge on fuels, combustion, and flue gas analysis with this quiz. Learn about combustion, incomplete combustion, combustion products, and how to write balanced combustion equations. Challenge yourself and solidify your understanding of these important topics.
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