Fuels and Combustion — Test 10
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Question 1
Preheating of coal charge for the coke ovens reduces the __________________?
Question 2
Washing of coal does not reduce its______________________?
Question 3
Pure carbon is completely burnt in oxygen. The flue gas analysis is 70%CO2, 20%CO and 10%O2. The percent excess oxygen used is __________________?
Question 4
Blast furnace gas constitutes mainly of_________________?
Question 5
Which of the following is a single stage, fixed bed high pressure coal gasification process ?
Question 6
In low temperature carbonisation of coal, the________________?
Question 7
Furnace oil consumption in a furnace for a given duty employing preheated combination air (at 300°) may be reduced by about ______________ percent as compared to the use of atmospheric combustion air?
Question 8
Gray King Assay and Swelling Index of a coal is a measure of its ____________________?
Question 9
Coke made in narrower by-product coke ovens (as compared to wider ovens) is _____________________?
Question 10
_____________ present in coal is not determined in its ultimate analysis ?