40 TOP Fuels and Combustion Online Test – Multiple Choice Questions and Answers

1. The heat of combustion of a fuel


2. Proximate analysis of coal determines its __________ content


3. Yield of pitch from distillation of high temperature tar is around __________ percent


4. Which of the following petrographic constituents of coal is non-coking ?


5. In flue gas analysis by Orsat’s apparatus, carbon dioxide is absorbed by


6. __________ has the widest inflammability limit (explosion limit) of all the gases


7. “Overfire burning” in a furnace is a phenomenon characterised by the


8. Abrasion index of blast furnace coke should be around __________ percent


9. With increase in moisture content of coal, its


10. ‘Fat’ coal means a coal having


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