5 Questions
What is the main constituent of chemical fuel for domestic and industrial purposes?
Carbon
Which classification of fuels is based on whether they occur in nature or are prepared?
Primary and secondary fuels
What is the formula used for calculating both Gross and Net calorific values?
Dulong’s formula
What is the measure of a fuel's resistance to knocking in internal combustion engines?
Octane number
What is the refining process of crude petroleum to produce liquid fuel?
Distillation
Study Notes
Chemical Fuels
- The main constituent of chemical fuel for domestic and industrial purposes is Hydrocarbons.
Classification of Fuels
- Fuels are classified into two categories: Natural Fuels and Artificial Fuels, based on whether they occur in nature or are prepared.
Calorific Values
- The formula used for calculating both Gross and Net calorific values is: Q = (m × ΔHc) / M, where Q is the calorific value, m is the mass of the fuel, ΔHc is the heat of combustion, and M is the molecular weight of the fuel.
Fuel Properties
- The measure of a fuel's resistance to knocking in internal combustion engines is Octane Rating.
Petroleum Refining
- The refining process of crude petroleum to produce liquid fuel is Cracking, which involves the breakdown of large molecules into smaller ones.
Test your knowledge of fuels and combustion with this quiz covering the definition and classification of fuels, calorific value, Dulong's formula, proximate and ultimate analysis of coal, refining of crude petroleum, and the properties of petrol including knocking, octane number, cetane number, and antiknock agents. Ideal for students and professionals in the field of energy, engineering, and environmental sciences.
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