Fuels and Combustion — Test 16
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Question 1
Yield of coke oven gas in low temperature carbonisation of coal is about ______________ Nm3 /ton of dry coal?
Question 2
Orsat apparatus is meant for ___________________?
Question 3
The combustion reaction, C + O2 = CO2, is ___________________?
Question 4
Which of the following constituents of coal is the most important in the production of coke ?
Question 5
The liquid used for the washing of coal in an industrial coal washery is a mixture of water and ____________________?
Question 6
Quantity of coke produced from metallurgical coal may be around _____________ percent?
Question 7
Explosion limit of blast furnace gas is 37 to 71% gas in gas-air mixture. It means that the blast furnace gas will explode when burnt in a confined space, if its concentration in the gas-air mixture is _______________ percent?
Question 8
Fussain _____________________?
Question 9
Commercial production of petrol from coal (as practised in a factory at Sasol in South Africa) is done by the ________________ of coal?
Question 10
Gross and net calorific value of a fuel will be the same__________________?