Fuels and Combustion — Test 6
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Question 1
Natural draft created by the chimney depends upon _____________________?
Question 2
Coke oven gas constitutes mainly of ____________________?
Question 3
Presence of nitrogen in combustion air does not reduce the ____________________?
Question 4
Coke oven gas is stripped of its H2S and mercaptans content by_________________?
Question 5
For long flame and easy ignition, the coal used should have_________________?
Question 6
Quantity of coke oven gas produced by high temperature carbonisation of one ton of dry coal may be around ______________ Nm3?
Question 7
The gasification reaction represented by, C + H2O = CO + H2, is__________________?
Question 8
The calorific value of a gas of composition CO2 = 20%, H2 = 50%, CH4 = 30%, is y. If the composition of gas is changed to H2 = 50%, CH4 = 30%, CO2 = 10%, N2 = 10%, then the calorific value will be___________________?
Question 9
C/H ratio is the minimum in case of_________________?
Question 10
Which of the following is the most important deterrents to an extended use of pulverised coal in boiler firing ?