11 Questions
Which coal classification has the highest percentage of volatile matter?
Lignite
Which coal classification has the highest carbon content?
Anthracite
Which coal classification is the most suitable fuel for utility boilers?
Bituminous
Which of the following equations represents the combustion of hydrogen correctly?
2H2 + O2 -> 2H2O
What is the mass of dry flue gas produced per kilogram of fuel in Example 15?
16.44 kg
What is the actual air supplied per kilogram of fuel in Example 15?
15.98 kg
What is the stoichiometric air required per kilogram of fuel in Example 15?
10.65 kg
Which class of coal has the highest calorific value?
Anthracite
Which class of coal is not well suited for stoker firing?
Bituminous
What is the moisture content of lignite?
High
What is the combustion equation for carbon?
carbon + oxygen -> carbon dioxide
Test your knowledge on coal classifications and combustion characteristics with this quiz. Learn about the different groups and sub-classifications of coal, as well as how to analyze combustion equations. Get ready to become an expert in coal properties and combustion!
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