10 Questions
What is the classification of fuels based on whether they occur in nature or are prepared?
Primary and Secondary
What is the main constituent of chemical fuel for proper burning?
Carbon
What is the measure of the amount of heat produced by the complete combustion of a fuel?
Calorific value
What is the process of removing impurities from crude petroleum to produce usable products?
Refining
What is the definition of fuel?
Fuel is a substance containing carbon as the main constituent, which on proper burning gives a large amount of heat that can be used economically for domestic and industrial purposes.
What is the main component of natural gas and CNG, which is used as a gaseous fuel?
Methane
What is the classification of fuels?
Fuels are classified based on whether they occur in nature (primary fuels) or are prepared (secondary fuels), and based on the state of aggregation (solid, liquid, gaseous).
What is the process of refining crude petroleum to produce liquid fuel?
The process of refining crude petroleum to produce liquid fuel involves the removal of impurities and separation of different hydrocarbons through processes such as distillation, cracking, and reforming.
What is the difference between gross calorific value and net calorific value?
Gross calorific value is the total amount of heat produced by the complete combustion of a fuel, including the heat released by the condensation of water vapor. Net calorific value is the amount of heat produced by the complete combustion of a fuel, excluding the heat from the condensation of water vapor.
What are the components of natural gas and CNG used as gaseous fuels?
The main components of natural gas and CNG used as gaseous fuels are methane (CH4) and ethane (C2H6).
Test your knowledge of fuels and combustion with this quiz covering the definition and classification of fuels, calorific value calculations, solid fuel analysis, refining of crude petroleum, and the properties of liquid fuels such as petrol. Sharpen your understanding of Dulong’s formula, proximate and ultimate analysis of coal, octane number, cetane number, and antiknock agents.
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