Fuels and Combustion Preheating of coal charge for the coke ovens reduces the Time of carbonisation Yield of gas and tar Fuel consumption in coking All of these Time of carbonisation Yield of gas and tar Fuel consumption in coking All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Calorific value of bituminous coal may be around __________ Kcal/kg. 6500 20000 500 1500 6500 20000 500 1500 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gray King Assay and Swelling Index of a coal is a measure of its Abradability Resistance to impact breakage Agglutinating properties Swelling characteristics Abradability Resistance to impact breakage Agglutinating properties Swelling characteristics ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Removal of hydrogen from coke oven gas Does not alter its calorific value Decreases its calorific value Is not possible on commerical scale Increases its calorific value Does not alter its calorific value Decreases its calorific value Is not possible on commerical scale Increases its calorific value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During coking of coal, the ash content (percentage) None of these Remains constant Increases Decreases None of these Remains constant Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Blast furnace coke is made from coal by Heating the coal in an oven in presence of air Low temperature carbonisation High temperature carbonisation Medium temperature carbonisation Heating the coal in an oven in presence of air Low temperature carbonisation High temperature carbonisation Medium temperature carbonisation ANSWER DOWNLOAD EXAMIANS APP
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