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

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


2. The heat of combustion of a fuel


3. With increase in moisture content of coal, its


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


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


6. ‘Fat’ coal means a coal having


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


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


9. Proximate analysis of coal determines its __________ content


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


Question 1 of 10

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