Fuels and Combustion Prime coking coal is always blended with medium or non- coking coal before ear-bonisation To check against its excessive swelling during heating, which may exert high pressure and damage coke oven walls Neither A nor B Both A & B Because, it alone produces unreactive coke To check against its excessive swelling during heating, which may exert high pressure and damage coke oven walls Neither A nor B Both A & B Because, it alone produces unreactive coke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coal is heated in presence of air to a temperature of about __________ °C, while determining its ash content for proximate analysis. 1100 500 750 950 1100 500 750 950 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increases in carbonisation temperature Tar yield increases Hydrogen percentage in the coke oven gas decreases Coke even gas yield increases Methane percentage in the coke oven gas increases Tar yield increases Hydrogen percentage in the coke oven gas decreases Coke even gas yield increases Methane percentage in the coke oven gas increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is a measure of the agglutinating (i.e., binding) property of coal? Swelling index Caking index Gray-king index Thickness of plastic layer Swelling index Caking index Gray-king index Thickness of plastic layer ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Benzol is used For producing benzene, tolune & xylene by its distillation As a motor fuel blend Both A & B Neither A nor B For producing benzene, tolune & xylene by its distillation As a motor fuel blend Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In Orsat's apparatus, ammoniacal cuprous chloride is used for selectivity absorbing H₂O O₂ CO CO₂ H₂O O₂ CO CO₂ ANSWER DOWNLOAD EXAMIANS APP
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