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

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1. Proximate analysis of coal determines its __________ content

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

7. With increase in moisture content of coal, its

 
 
 
 

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

 
 
 
 

9. The heat of combustion of a fuel

 
 
 
 

10. ‘Fat’ coal means a coal having

 
 
 
 

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