Fuels and Combustion — Test 15

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Question 1

If oxygen content in the flue gas rises too high, fuel is being wasted by _______________?

Question 2

Higher efficiency in the combustion of solid fuel cannot be achieved by________________?

Question 3

Ultimate analysis of coal determines its _______________ content?

Question 4

A particular coal is said to be free burning when it __________________?

Question 5

Critical Air Blast (CAB) value of coke is a direct measure of its__________________?

Question 6

Improper storage condition results in the weathering of coal and spontaneous combustion, which increases its_________________?

Question 7

The sequence of absorption in flue gas analysis by Orsat’s apparatus is respectively_______________________?

Question 8

Sometimes water is sprayed during coal charging in the coke oven, which helps in ________________?

Question 9

Coal tar fuel – 200 (CTF 200) is a mixture of __________________?

Question 10

During coal carbonisation process, the conversion of semi-coke to coke is accompanied by an increase in the _______________ of the mass?