Fuels and Combustion Ignition temperature decreases progressively from anthracite to lignite, because Carbon content decreases Ash content increases Volatile matter content increases Moisture content increases Carbon content decreases Ash content increases Volatile matter content increases Moisture content increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The bright glow of a combustion process is the characteristic of __________ temperature oxidation of coal. Fast & high Fast & slow Slow & low Slow & high Fast & high Fast & slow Slow & low Slow & high ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Beehive coke oven Facilitates by-products recovery Takes 2-3 days for coking of coal but requires no external fuel for heating Produces coke with very poor strength Gives larger yield of coke (around 85%) as compared to by-product ovens Facilitates by-products recovery Takes 2-3 days for coking of coal but requires no external fuel for heating Produces coke with very poor strength Gives larger yield of coke (around 85%) as compared to by-product ovens ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The main reason for making the copper calorimeter (used in bomb calorimeter) silvery white and shining/polished is to Avoid radiation heat loss None of these Make it look attractive Minimise its corrosion Avoid radiation heat loss None of these Make it look attractive Minimise its corrosion ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in C/H ratio of a fuel, the amount of CO₂ formed on its complete combustion Decreases Remains same Either A or B, depends on other factors Increases Decreases Remains same Either A or B, depends on other factors Increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Improper storage condition results in the weathering of coal and spontaneous combustion, which increases its Yield of carbonised products Calorific value Caking index Friability & oxygen content Yield of carbonised products Calorific value Caking index Friability & oxygen content ANSWER DOWNLOAD EXAMIANS APP
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