Fuels and Combustion Which of the following has the highest heat of combustion? C₂H₆ CH₄ H₂ CO C₂H₆ CH₄ H₂ CO ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in the time of carbonisation at a particular temperature (say 1000°C), the __________ percentage in coke oven gas increases. All of these Hydrogen Methane Unsaturated hydrocarbons All of these Hydrogen Methane Unsaturated hydrocarbons 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? 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 Calorific value of the fuel Heat transfer rate to the stock in the furnace ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is not a by-product recovered in a high temperature coal carbonisation plant? Ethylene Pitch-cresosote mixture (PCM) Benzol Napthalene Ethylene Pitch-cresosote mixture (PCM) Benzol Napthalene ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Increase in ash content of blast furnace coke Reduces its consumption in the furnace Does not affect its consumption in the furnace Increases its consumption in the furnace Decreases its hardness and abrasion resistance Reduces its consumption in the furnace Does not affect its consumption in the furnace Increases its consumption in the furnace Decreases its hardness and abrasion resistance ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following fuel gases is heavier than air? Coke oven gas Natural gas Water gas Blast furnace gas Coke oven gas Natural gas Water gas Blast furnace gas ANSWER DOWNLOAD EXAMIANS APP
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