Fuels and Combustion With increase in the oxygen content of the coal, its __________ decreases. Both A & B Caking power Calorific value Neither A nor B Both A & B Caking power Calorific value Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke ovens in steel plant are heated by Electricity Both B & C Mixed gas Coke oven gas Electricity Both B & C Mixed gas Coke oven gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Oxygen percentage (by weight) in atmospheric air is 29 23 19 21 29 23 19 21 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Ash content in the middling coal (a byproduct of coal washeries) in India ranges between __________ percent. 55 to 75 35 to 45 15 to 25 75 55 to 75 35 to 45 15 to 25 75 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Prime coking coal is always blended with medium or non- coking coal before ear-bonisation Because, it alone produces unreactive coke Both A & B Neither A nor B To check against its excessive swelling during heating, which may exert high pressure and damage coke oven walls Because, it alone produces unreactive coke Both A & B 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 Coking time in beehive coke oven is about One week Two weeks 12 hours 2-3 days One week Two weeks 12 hours 2-3 days ANSWER DOWNLOAD EXAMIANS APP
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