Fuels and Combustion Calorific value of coke even gas produced by low temperature carbonisation of coal is about __________ Kcal/Nm³. 4000 2500 6500 10000 4000 2500 6500 10000 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Prime coking coal is always blended with medium or non- coking coal before ear-bonisation Both A & B Because, it alone produces unreactive coke Neither A nor B To check against its excessive swelling during heating, which may exert high pressure and damage coke oven walls Both A & B Because, it alone produces unreactive coke Neither A nor B To check against its excessive swelling during heating, which may exert high pressure and damage coke oven walls ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During the carbonisation of coal Hard semi-coke starts shrinking at 600°C Evolution of H₂ and formation of methane and aromatics occur at > 700°C All tar is evolved at < 600°C All of these Hard semi-coke starts shrinking at 600°C Evolution of H₂ and formation of methane and aromatics occur at > 700°C All tar is evolved at < 600°C All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Volatile matter content of metallurgical coke may be around __________ percent. 1-2 10-15 22-26 30-33 1-2 10-15 22-26 30-33 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In Orsat's apparatus, ammoniacal cuprous chloride is used for selectivity absorbing CO₂ H₂O O₂ CO CO₂ H₂O O₂ CO ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is not a micro component present in coal? Micrinite Liptinite Fusinite Clarain Micrinite Liptinite Fusinite Clarain ANSWER DOWNLOAD EXAMIANS APP
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