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

1. Proximate analysis of coal determines its __________ content

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

5. With increase in moisture content of coal, its

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

9. ‘Fat’ coal means a coal having

 
 
 
 

10. The heat of combustion of a fuel

 
 
 
 

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