Fuels and Combustion Blast furnace coke is made from coal by Medium temperature carbonisation 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 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Beehive coke oven Facilitates by-products recovery Gives larger yield of coke (around 85%) as compared to by-product ovens Produces coke with very poor strength Takes 2-3 days for coking of coal but requires no external fuel for heating Facilitates by-products recovery Gives larger yield of coke (around 85%) as compared to by-product ovens Produces coke with very poor strength Takes 2-3 days for coking of coal but requires no external fuel for heating ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Caking index of the coal blend used for the manufacture of metallurgical coke should be around 48 40 21 5 48 40 21 5 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in the oxygen content of the coal, its __________ decreases. Caking power Calorific value Both A & B Neither A nor B Caking power Calorific value Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Soft coke is not Used in blast furnaces None of these Produced by low temperature carbonisation of coal A domestic fuel Used in blast furnaces None of these Produced by low temperature carbonisation of coal A domestic fuel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The pyragallol solution used in orsat apparatus can absorb Both O₂ and CO Only O₂ All of these Both O₂ and CO₂ Both O₂ and CO Only O₂ All of these Both O₂ and CO₂ ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS