Fuels and Combustion With increase in C/H ratio of a fuel, the amount of CO₂ formed on its complete combustion Increases Either A or B, depends on other factors Decreases Remains same Increases Either A or B, depends on other factors Decreases Remains same ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is not increased by using preheated combustion air in place of ordinary air at room temperature? Calorific value of the fuel Heat transfer rate to the stock in the furnace Speed of combustion of fuel Flame temperature achieved Calorific value of the fuel Heat transfer rate to the stock in the furnace Speed of combustion of fuel Flame temperature achieved ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Beehive coke oven 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 Facilitates by-products recovery 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 Caking index Calorific value Friability & oxygen content Yield of carbonised products Caking index Calorific value Friability & oxygen content ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion 'Wobbe index' is a characteristic of Solid fuels Fat coals Gaseous fuels Liquid fuels Solid fuels Fat coals Gaseous fuels Liquid fuels ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following petrological constitutes is responsible for bright and lustrous black band of bituminous coal? Clarain Durain Vitrain Fussain Clarain Durain Vitrain Fussain ANSWER DOWNLOAD EXAMIANS APP
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